必须的

Deviation or delay in prosecuting the voyage contemplated by the policy is excusedWhere arthorised by any special term in the policy ;or Where caused by circumstances beyond the control of the master and his employer;or Where reasonably necessary in order to comply with an express or implied warranty;or Where reasonably necessary for the safety of the ship or subject-matter insured; or For the purpose of saving human life, or aiding a ship in distress where human life may be in danger; or Where reasonably necessary for the purpose of obtaining medical or surgical aid for any person on board the ship;or Where caused by the barratrous conduct of the master or crew, if barratry be one of the perils insured against.

（1）船舶在进行保险单预期的航次中，下述绕航或延迟可允许：保险单中任何特别条款授权许可者，或船长和其雇员不能控制的情况造成的；或为遵循明示或默示保证所合理必须的；或为船舶和保险标的的安全所合理必要的；或为了救助人命或为援助有人命危险的遇难船舶；或为船上任何人员及时得到内、外科治疗所合理必要的；或如果"船长、船员恶意损害被保险人利益的行为"系承保风险，由于该恶意行为造成的。（2）一旦允许绕航或迟延的原因停止作用，船舶必须合理尽速地回复原航线并继续其航程。

Deviation or delay in prosecuting the voyage contemplated by the policy is excusedWhere arthorised by any special term in the policy ;or Where caused by circumstances beyond the control of the master and his employer;or Where reasonably necessary in order to ply with an express or implied warranty;or Where reasonably necessary for the safety of the ship or subject-matter insured; or For the purpose of saving human life, or aiding a ship in distress where human life may be in danger; or Where reasonably necessary for the purpose of obtaining medical or surgical aid for any person on board the ship;or Where caused by the barratrous conduct of the master or crew, if barratry be one of the perils insured against

（1）船舶在进行保险单预期的航次中，下述绕航或延迟可允许：保险单中任何特别条款授权许可者，或船长和其雇员不能控制的情况造成的；或为遵循明示或默示保证所合理必须的；或为船舶和保险标的的安全所合理必要的；或为了救助人命或为援助有人命危险的遇难船舶；或为船上任何人员及时得到内、外科治疗所合理必要的；或如果"船长、船员恶意损害被保险人利益的行为"系承保风险，由于该恶意行为造成的。（2）一旦允许绕航或迟延的原因停止作用，船舶必须合理尽速地回复原航线并继续其航程。

Laws must be sufficient to determine the will as will, even before I ask whether I have power sufficient for a desired effect, or the means necessary to produce it; hence they are categorical: otherwise they are not laws at all, because the necessity is wanting, which, if it is to be practical, must be independent of conditions which are pathological and are therefore only contingently connected with the will.

简译：laws必须足以把意志作为意志来规定，即使并没有进行这个（即'我问我自己是否拥有足以实现所欲求的后果的能力或产生该后果所必须的工具'）；因此它们是范畴性的categorical定言的，否则它们就不是laws，因为它缺乏必然性，而如果这个原理要被实践的话，这必然性是和'诸如习惯喜好等（由此是偶然关联于意志的）条件'无关的/相独立的。

However, as a person or a group whether marginalized or not, they can not live a absolute lone life. Because communication is necessary for our existence and existence comes true in communication, intersubjective recognition is necessary in ontological meaning.

然而，无论是作为强势的个人或者群体，还是作为弱势个人或者群体，他们都不可能在绝对孤独中生存，交往作为人与人之间的联系乃是生存所必须的，生存正是在交往中实现的，所以，存在论意义上的主体间的承认是必须的。

Deviation or delay in prosecuting the voyage contemplated by the policy is excusedWhere arthorised by any special term in the policy ;or Where caused by circumstances beyond the control of the master and his employer;or Where reasonably necessary in order to comply with an express or implied warranty;or Where reasonably necessary for the safety of the ship or subject-matter insured; or For the purpose of saving human life, or aiding a ship in distress where human life may be in danger; or Where reasonably necessary for the purpose of obtaining medical or surgical aid for any person on board the ship;or Where caused by the barratrous conduct of the master or crew, if barratry be one of the perils insured against.

（1）船舶在进行保险单预期的航次中，下述绕航或延迟可允许：保险单中任何特别条款授权许可者，或船长和其雇员不能控制的情况造成的；或为遵循明示或默示保证所合理必须的；或为船舶和保险标的的安全所合理必要的；或为了救助人命或为援助有人命危险的遇难船舶；或为船上任何人员及时得到内、外科治疗所合理必要的；或如果&船长、船员恶意损害被保险人利益的行为&系承保风险，由于该恶意行为造成的。（2）一旦允许绕航或迟延的原因停止作用，船舶必须合理尽速地回复原航线并继续其航程。

That is, it is absolutely necessary when you drive a car, to think, or it may be instinctual, but you have thought of it, to learn a language, to play the piano, to do your business, to do whatever you do, thought is necessary.

那就是，当你驾驶一辆车的时候它是绝对必须的，去想，或者它或许是本能的，但是你已经考虑过它了，去学一门语言，去弹钢琴，去做你的生意，去做无论你做的什么，思想是必须的。

Genes that are numbered are essential: a mutation in any one of these loci prevents successful completion of the lytic cycle.

标有数字的基因是必须的，用三个字母缩写表示的基因在通常的感染条件下可认为是非必须的。

When outdoors, children must use a waterproof, sweatproof sunscreen with an SPF of at least 30 that blocks both UVA and UVB all of the time; reapply often. Wear a hat with a wide brim and cover arms and legs with a lightweight layer of clothing.

在户外时，SLE的孩子必须使用含有SPF 30以上防水防汗的防晒霜，来阻绝阳光中的UVA及UVB，不定时的补擦防晒霜是必须的，但同时间也别忘了戴寛边帽及穿著轻薄的衣服来覆盖手臂及腿。

The study indicates that the content of soil carbon is on the low side because human behavior has a negative effect on sloping cropland. However, the content of every group soil carbon increased drastically by planting Robinia . With the increasing of the time of conservation, the relationship is very remarkable. After 50 years of restoration, the content of TOC, LOC, NLOC and AI in the study plot increased by 271%,174%, 467%, and 271%, respectively, compared with sloping cropland. The increasing speed of NLOC was faster than LOC. It is assumed that the increased carbon by restoration is stored in an inactive form to produce active matter which is necessary for biont. And the soil carbon must keep active to fulfill the balance of carbon dynamic transformation. At initial stages, soil carbon management index increased remarkably.

营造刺槐林可以显著增加土壤碳库各组分含量，并随恢复年限呈显著线性关系，50a时TOC、LOC、NLOC和碳库指数分别较坡耕地增加271%、174%、467%和271%，其中NLOC增加速率略高于LOC，表明植被恢复增加的土壤碳素绝大多数以非活性形态贮存起来，而为了满足生物生长所必须的活性物质来源，土壤碳库必须维持一定的活度状态来满足碳素的动态转化平衡，碳库管理指数在营造刺槐林初期显著降低，随后先增加后降低，与刺槐林生长特性密切相关；但与天然林相比差距仍然较大，恢复50a时TOC、LOC和NLOC仅为侧柏林的49%、34%和61%。

Amsterdam, like New York today, was a town of culture-craving burghers who had to have -- had to have -- a Rembrandt in their homes.

当时的阿姆斯特丹人就像是今天的纽约人一样，对艺术渴望的有钱人在家里挂上伦勃朗的绘画是必须的，曾经是必须的。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。