Difference operator
[计] 差分算子
🧩 词语组成解析
🗣️ 情景例句
Take it easy!
再见。
You are older than I am.
你比我年老。
tell me that they have been expecting a splendid crop this year and harvesting has begun earlier than usual.
告诉我，他们一直期待着今年获得一个大丰收，收割工作比往年开始要早些。