Backing pulley
[机] 回行皮带盘
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
pulley
['pʊli]
n. 滑轮（组），滑车;皮带轮;
v. 用滑轮升起，用滑车推动;给…装滑车;
🗣️ 情景例句
Tell me what you think, yay or nay?
告诉我你究竟是怎样想的，是还是不是？
When the tree is fallen, every one runs to it with his axe.
大树一倒下，人人持斧来。
I think so. Why?
我想有的。干吗？