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
There are other boys and girls here,
还有其他男孩女孩在这儿，
How many years have you been playing pingpong?
你打乒乓球多少年了？
We need three times as much as we originally ordered.
原来的三倍。