Operation definition
[计] 运算定义
🧩 词语组成解析
🗣️ 情景例句
Nope. I am in perfect health.
没有。我身体好的很。
Where were you during the month of April last year?
去年四月份你在哪里？
Oh, good! He's coming down the ladder, now.
噢，好！现在他正从梯子上爬下来。