查询词典 must be

He must do it politely and with dignity. His behaviour must be above reproach.

他如果举止失当，便会使自己的国家蒙羞。

Members must be at least 14 years of age and must report their age accurately.

成员必须至少14岁以下的，必须报告他们的年龄，准确。

But I must hasten to add that this does not mean that an agnostic must be a materialist.

但是我得赶紧补充一下：这并不意味着疑神论者就必定是唯物论者。

6 All traffic signs and signals, whether fixed or portable must be obeyed; drivers must cooperate with BP Amoco security officers and others appointed to direct traffic.

应遵守所有的交通指示牌和交通警示灯(无论固定的还是可移动的)，司机必须配合BP Amoco的保安员和其他派来指挥交通的人员的工作。

We must be wary of Ancona, we must also beat the small sides if we want the Scudetto.

我们必须警惕安科纳，如果我们希望赢得联赛冠军，我们还必须击败小球队。

The Commodity Inspection Bureauacts in conformity with the principle that "all import and export goods must be inspected", as stipulated in the Regulations on Commodity Inspection, under which uninspected import goods arenot permitted to be installed for production, to be sold or to beused, while uninspected export goods or those proven to be unqualified after inspection are not permitted to be exported.

商检局贯彻执行《商检条例》关于&一切进出口商品都必须经过检验&的原则。进口商品未经检验的，不准安装投产，不准销售，不准使用，出口商品未经检验和检验不合格的，不准出口。

As the forward velocity increasing, the windrowing angle would be decreased, but the effect of forward velocity on windrowing distance was not obvious. The windrowing angle and distance of multiple sugarcane stalks would be smaller than those of single sugarcane stalk, but the maximum range of windrowing angle and distance of multiple sugarcane stalks would be greater than those of single sugarcane stalk. In order to sugarcane stalks outward windrowing, holding height must be within ±100mm of height of sugarcane mass center. As holding height increasing, the windrowing distance would be decreased, but the effect of holding height on windrowing angle was not obvious.

随着夹持输送装置输送速度的增大，甘蔗铺放角和甘蔗铺放距离也随着增大，随着机车前进速度的增大，甘蔗铺放角是减小的，而前进速度对甘蔗的铺放距离影响不大；多根甘蔗的铺放角和铺放距离要比单根甘蔗小，铺放角和铺放距离最大极差要比单根甘蔗大；入口夹持点高度应在甘蔗质心高度±100mm范围内为宜，以保证甘蔗能向机车外侧铺放，随夹持高度的增加，甘蔗质心位于夹持点下方的距离增大，甘蔗铺放距离减小，而夹持高度对甘蔗铺放角影响不大。

Care only must be taken, lest, under the pretense of petitioning, the subject be guilty of any riot or tumult; as happened in the opening of the memorable parliament in 1640: and, to prevent this, it is provided by the statute 13 Car. II. st. 1. c. 5. that no petition to the king, or either house of parliament, for any alterations in church or state, shall be signed by above twenty persons, unless the matter thereof be approved by three justices of the peace or the major part of the grand jury, in the country; and in London by the lord mayor, aldermen, and common council; nor shall any petition be presented by more than two persons at a time.

唯一需要注意的是避免在请愿的名义之下，行暴乱或骚乱的罪行；就像难以忘记的1640年国会开始的那一幕一样：然后为了避免这样情况，查理二世第13年第1部法案第五章规定：任何为变更教会或政府之目的而向国王或国会之一院所作的请求，不得超过20人签名，除非经国家中三位和平法官或大审判团的多数同意；在伦敦则经市长，市贵族院议员和共同会议同意；请愿书的递送一次不得多于两人。

Facing the water conservancy development in the knowledge economy era,the way of thinking must be changed,the relation between human and water be co ordinated harmoniously,special attention be paid to the continuable utilization of water resourses and projects, modernization progress be sped up and modernized way of developing water conservancy be followed.

面临知识经济时代的水利发展，必须转变治水的思路，协调好人与水的和谐关系，重视水资源的可持续利用和水工程的可持续利用，加速现代化进程，走现代水利的道路

If a "reasonable" notion of database consistency is to be supported (I.c. the database system is to enforce it automatically), there are bound to be" conflict" situations where one transaction comes into an access conflict against some other transaction. If await is to be avoided,some means of a negotiated settlement of the conflict must be provided, thereby dragging the users into the details of concurrency control.The single-database model is more appropriate-ate than the multiple-database model in an environment where it is difficult to determine in advance logical partitions of the database that correspond to work to be performed, and the users closely cooperate.

如果一个数据库一致的合理观念要得到支持（即数据库系统要自动实行这个观念）、一定会有矛盾的情形产生、在这种情形中一个业务与其它业务产生存取矛盾如果要避免等待，就必须提供某种协商解决矛盾的方法，从而迫使用户详细了解并行控制单一数据库模式在某一种环境中比多个数据库模式更恰当，在这个环境中，要事先确定与要执行的工作相适应的数据库的逻辑分割是很难的，同时用户们又紧密地合作在一起。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。