尽管现在你可能还不是一个专业人才，然而早早建立关系网络，一旦毕业即可工作毫无害处。

While you might not be a professional yet, it doesn't hurt to start early with networking so you can get a job once you graduate.

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但是你必须理解，你一旦毕业，你将在一群人人都有博士学问的科学家中间工作。

However, you should understand that once you graduate, you will work among a group of scientists who each hold a Ph.

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在学校，他们也许面对着父辈做梦都没想过的大都会世界，而一旦毕业来临，他们找工作的难度远甚于城里同龄人。

At school, they may encounter a cosmopolitan world their parents never dreamed of — but once graduation rolls around, they face an even more grueling job search than their urban peers.

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And then once you go to graduate school,

然后一旦你毕业了，

在梦想与现实之间 - SpeakingMax英语口语达人