他们在吃晚餐
They are having dinner
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当他们在吃晚餐时，我们在海边慢跑锻炼。
While they were having their dinner, we were jogging along the beach.
youdao
他们在吃晚餐。
They had dinner.
They are eating dinner.
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