Hand lubrication
[机] 手工润滑
🧩 词语组成解析
hand
[hænd]
n. 手;协助，帮助;（工具等的）把，柄;掌管;
vt. 传递，交给;搀扶;支持;
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
Protein, vitamins.
蛋白质， 维他命。
Which would you rather do--go dancing or go to a play?
你将去跳舞还是去看戏？
international standards of water treatment are usually followed at bottling plants.
装瓶厂通常遵循国际水处理的标准。