Acing
vt. 发球得分（ace的现在分词形式）
🗣️ 情景例句
She's a terrific person.
她人很好。
Nobody's at home.
家里面没人。
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。