The fourth week of training is a step-back week to recover from the previous three weeks of effort.

第四周的训练量有些减少，使你可以从前三周的训练中恢复过来。

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On the fourth week I was allowed to solo up the corridor. As I passed his room, there was my faithful friend in the doorway.

到了第四个星期，我可以自己在长廊上走了，每当我经过他的房间，我这位忠实的朋友都会站在门口。

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Most professors do assign homework the first week of classes and actually expect you to do it. Even if there's no test or quiz 'til the fourth week.

大多数教授都会在第一周布置作业，并且希望你能完成，即使直到第四周才会有考试或测验。

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By the thirty-fourth week, it could remember the sound for four weeks.

VOA: special.2010.11.30

"Stop the panic," Russia's top official for agriculture commanded Russians on Friday as the nation faced a fourth week of baking hot temperatures more normally associated with North Africa.

VOA: standard.2010.07.23

It is also only the fourth week since then that bearish sentiment has been above its historical average of 30%.

FORBES: Bullish Sentiment Falls To 10-Week Low

In the fourth week of CNN iReport boot camp, we challenged iReporters to show off their photography and videography skills.

CNN: iReport roundtable: Boot camp, Week 4

It's only the fourth week of the season and the in-form Chinese right-hander has amassed a win-loss record of 14-1, which includes a title in Shenzhen.

WSJ: Li Hopes to Make History at Australian Open