晚上，当他们回到家中时，这些货物早已送达。
By the time they got home that evening, those groceries had been delivered.
当他们回到家后，他们经常会为一些鸡毛蒜皮的小事吵架。
When they home, they often quarrel with each other for some trifles.
当他们回到家中休养后，家人就必须负起照顾他们的重任了。
When they return home to convalesce, families need to take up the responsibility of looking after them.
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