Componendo
合比定理
🗣️ 情景例句
Her illness kept her in bed for a week.
她因生病而在床上躺了一星期。
It won't fit; you'll have to go to the post office.
那不行，你必须去邮局才行。
He can't make it today. He has to stay at home.
他今天不行了。他得呆在家里。