一旦你清楚了某公司的文化后，你才可以在早晨化妆时增加(或不增加)这些装饰。
Once you know the culture of the company, then you can start to add (or not) these items to your morning toilette.
一旦我们能够然学生保持安静下来，接下来才开始真正教学。
Once we have been able to keep students quiet, then the real work begins.
尽管如此，企鹅也十分谨慎：它们仅仅在捕食时才呆在水下；一旦意识到冰面很薄或是附近出现海豹，它们就会紧紧地趴在冰面上，一动不动。
Even then, the penguins are cautious; they stay in the water only long enough to feed, and they're adept at remaining motionless when they're on thin ice and spot a leopard seal.
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