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
Thanks.
谢谢。
How was your flight? Was it comfortable?
你坐的班机怎么样？还舒服吗？
We really need that material, you know.
你知道，我们急着需要那批材料。