When necessary, we favored jobs that would help diversify our list in terms of category and educational requirements, since not everyone wants to work in healthcare or go to school for six year.

必要的时候，我们还是喜欢那些能够使我们列表目录或者教育程度要求多样化的职位，因为毕竟不是每个人都想在保健业工作或者想去上六年学的。

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Only the six are real global film companies, while the rest are not. If we are to build a real movie empire, this is a necessary step.

只有好莱坞六大是真正全球性的电影公司，其他的都不是。如果我们想打造一个真正的电影帝国，这是必要的一步。

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next six months. We'll provide you with two lab assistants and if necessary

在今后的半年里合作共事。我们将给您配备两名实验助手。必要时我

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Vaccination for whooping cough begins when a child is two months old, but a series of three shots, to be completed by six months, is necessary for adequate protection.

CNN: Vaccination role unclear in whooping cough outbreak

In a period of high unemployment, financial planners recommend having six to twelve months of necessary expenses in a liquid fund available.

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There have been several cases where bids by political leaders have failed due to stiff competition from other bidders, or their own inability to raise necessary funding and only six units have been sold to politicians.

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