当他们送来的时候 When they are sent ; When they come
当他们来时
When they come
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当她回来时，他们正在谈论美国食品。
When she came back, they were talking about American food.
《柯林斯英汉双解大词典》
当他站起来时，他们笑得更大声了。
They laughed all the louder when he got up.
youdao
当他们站起来时，全场爆发出自发的掌声。
When they got up, the whole place broke out into spontaneous applause.
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