Mechanical lubrication
[化] 机械润滑; 强制润滑
🧩 词语组成解析
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
It is generally believed that Chinese are poor public speakers.
一般认为中国人不擅长公众演讲。
Talk back.
你还顶嘴！
You never know.
世事难料。