Dosing device
[化] 定量装置
🧩 词语组成解析
定量给料
🗣️ 情景例句
What are you so upset about?
什么使你如此难过？
The boss is waiting in his office for us to come and explain why we failed to finish this work on time.
老板在他的办公室里等着我们前去说明未能按期完成这个工作的理由。
Oh, hello, Bill. Yes, this is Ann's mother.
噢，你好，比尔。对，我就是安的母亲。