Operator notation
[计] 算子表示法, 算符表示法
🧩 词语组成解析
🗣️ 情景例句
Are you all alone?
就你一个人吗？
Yes, I'm watching Channel 5.
是的，我在看5频道。
When my mother had died after a tragic accident, he did not quickly recover from the shock and loneliness.
当时我母亲在一次事故中惨死，父亲未能很快从悲痛与孤独中恢复过来。