Memory leak prevention - is it necessary here?
内存泄漏的预防是必要的吗？
It is necessary that he (should) be here by the weekend.
周末之前，他应该到这里是必要的。
Here, it is necessary to say a greater problem.
说到这里，就要说更大的一个问题了。
We thought it is necessary for us to ask you to come here for an interview.
我们认为很有必要约你来此作一次面试。
This isn't necessary on the previous links but it is here.
在上一链接中这是不必要的，但在本链接中是必要的。
It is necessary that we should go here at once.
我们必须立即去那儿。
It is not necessary to read all of the handouts included here.
不必阅读这里所有的资料。
It is not necessary to read all of the handouts included here.
不必阅读这里所有的资料。
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