Dalembert equation
[化] 达朗贝尔方程
🧩 词语组成解析
🗣️ 情景例句
Your duties include checking the post and distributing it.
你的职责是检查和发送邮件。
Call me tomorrow if you have time.
明天要有时间就给我打个电话。
There are also endless numbers of birds in the tar as well.
沥青坑里还有无数只鸟的尸体。