Lubricating system
[化] 润滑系统
🧩 词语组成解析
润滑的
🗣️ 情景例句
Oh, you poor, poor baby.
哦，可怜的小家伙。
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
She was in the city to visit her daughter.
她住在农村。