Operator notation
[计] 算子表示法, 算符表示法
🧩 词语组成解析
🗣️ 情景例句
Sam, would you come in, please?
Sam，请进来一下， 好吗？
Deliver not your words by number but by weight.
言不在多，而在有物。
Then, when it's open, we fight about who plays with it first.
然后，当礼物打开后，我们又争着谁先来玩。