每日短语讲解 第924期:决定

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今日短语：
make up one's mind.

决定，打定主意

例句：
I made up my mind to join a tennis club.
我决定加入一个网球俱乐部。
Once he has made up his mind, he won't change it.
他一旦打定了主意，就不会更改。