当他们这样做的时候，你就该知道是时候停下来，继续做自己的事。
When they do so, you should know that it's time for you to stop and get on with your day.
当他们这样做时，你觉得他们的知觉是怎样的？
And when they do, what do you think their perception will be?
当他们这样做，我们不得不等待另一个组下降。
When they were done, we had to wait for yet another group to descend.
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