Monogene
单成因的
🗣️ 情景例句
Well, that would be OK
那倒没有什么关系
Never deter till tomorrow that which you can do today.
今日事须今日毕，切勿拖延到明天。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：