查询词典 if and only if

You should only use this utility if you experience the described problems, and only as a last resort.

如果你曾经体验过以上描述的问题，你应该使用该实用工具，并且作为最终的手段。

After looking at all of the different ways to manage the context object, I found that the only reason why you would want to persist the object is if you are doing a lot of data manipulation at one time and only want to make one call to the database to execute all of the changes.

经过在不同的方式来管理对象的所有情况来看，我发现的唯一原因你要坚持的对象是，如果你正在做大量的数据操作在同一时间只想一个调用数据库执行的所有更改。

I staid by it to load my Gun, and then coming away I could easily see the Thieves sitting upon all the Trees about me, as if they only waited till I was gone away, and the Event proved it to be so; for as I walk'd off as if I was gone, I was no sooner out of their sight, but they dropt down one by one into the Corn again.

我做木板的方法是这样的：因为我需要一块较宽的木板，就选定一棵大树把它砍倒。砍树花了三天的时间，再花了两天把树枝削掉，这样树干就成了一根大木头，或者说是成了木材。然后用大量的时间慢慢劈削，把树干两边一点点地削平。

The four most common phenotypes are A,B,AB,and O,referring to the type of antigen is presentor absenton the surface of a client's red blood cells,Routine testing usually involves only the Rh antigen.if an Rh-negative clinet receives Rh-positive blood,he or she will develop Rh antibodies,and future Rh-positive transfusions may cause a transfusion reaction .in pregnancy,antibodies from an Rh-negative mother may hemolyze fetal(erythroblastosis fetalis,or hemolytic disease of the newborn).

四种最普遍的表现型是A、B、AB、阿，这类型的抗原或表面上的一个客户的红血球、常规测试通常涉及到只有Rhantigen.if准备一Rh-positive接受血液，跟他或她将发展Rh抗体和未来的Rh-positive输血可能引起输血反应，在怀孕期间的母亲可能会产生抗体hemolyze北京(erythroblastosis fetalis或胎儿的新生儿疾病溶血试验确定具体)。

We only consider the operation system, the applied software on client machine, net and other hardware etc., When tuning the database performance with traditional way. If we only tune the database's round environment, it just respited the situation, and could not resolve the problem at all.

传统的数据库性能优化主要从操作系统、客户端应用软件程序设计、网络及其它硬件设备等方面来考虑，这种方法只是调整数据库的周边环境，只能暂时缓解问题，而不能从根本上解决问题。

We only consider the operation system, the applied software on client machine, net and other hardware etc., When tuning the database performance with traditional way. If we only tune the databases round environment, it just respited the situation, and could not resolve the problem at all.

传统的数据库性能优化主要从操作系统、客户端应用软件程序设计、网络及其它硬件设备等方面来考虑，这种方法只是调整数据库的周边环境，只能暂时缓解问题，而不能从根本上解决问题。

My goal has always been to if not step off the wheel, away from the scaffold, and out from under the guillotine of genetically pre-programmed trauma bonds, to at least recognize that I am not the only one living under a life sentence of willing victim-hood and abuse.

我的目标一直是这样的：如果不能从车轮上走下来，离开绞架，从遗传预先安排好的创伤镣铐的断头台下走出only官网特许经营来，至少要熟悉到我不是糊口在自愿的牺牲和凌虐的无期徒刑之中的惟逐一人。

20MHz . Now if you go down the port setting each pin in order; BSF PORTC,0 then BSF PORTC,1 then BSF PORTC,2 and so on, you may see that only the last pin was set, and only the last LED actually turns on.

现在如果你清端口后依次去置位引脚，如 BSF PORTC，0 然后 BCF PORTC，1 接着 BCF PORTC，2 这样下去，你将看到只有最后的一个管脚被真正置位了，只有一个 LED 点亮。

In remembrance : the book that started it is important to start after not stop no matter what the end, important is not following the end of remorse, I think the phrase described the life at the beginning and end of life, which we have run, just like me, since the choice of Taegu. chosen from the beginning, then do not give up easily, so I always go, if there is such a day. I insist not go, I choose the outcome, I hope I will not regret it after the mother left. This is a strange world, and only regretted medicine and the only medicine countless dead rat poison

书上说：不论在思念时候开始，重要的是开始之后就不要停止，不论在什么时候结束，重要的是结束之后就不要悔恨，我觉的这句话阐述了生活，在生活中我们一直在开始和结束中奔跑，就像现在的我，既然选择了大丘，选择了从头开始，那就不要轻言放弃，让我坚持下去吧，如果有那么的一天，我坚持不下去了，我选择了结果，我希望在我转身离开之后永远不要后悔，这世界无奇不有，惟独没有后悔药，只有药死了无数只的老鼠药

Then the duke he lets the curtain down, and bows to the people, and says the great tragedy will be performed only two nights more, on accounts of pressing London engagements, where the seats is all sold already for it in Drury Lane; and then he makes them another bow, and says if he has succeeded in pleasing them and instructing them, he will be deeply obleeged if they will mention it to their friends and get them to come and see it.

啊，看这个老傻瓜的这番精彩演出，恐怕连一头牛也会哈哈大笑吧。接下来公爵拉下大幕，对观众一鞠躬，说这场伟大悲剧只能再演两个晚上，因为伦敦方面有约在先，在特勒雷巷戏院里的座位早已预订一空。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷