没有比在大冷天头发湿着外出更糟糕的了。
There's nothing worse than going out in the cold with wet hair.
如果你的工作包含出差，在工作中保持健康就意味着离家时要适应外出工作。
If your job involves travel, staying healthy at work might mean fitting in a workout while you're away from home.
没有固定时间安排和外出要求，这意味着学生在任何地方任何时候都可以进行学习。
The lack of fixed schedule or travel requirements means that students can study when and where they want.
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