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
OK, just a second.
好了！请稍等一下。
One has lived too near a wood to be frightened by owls.
深知底蕴，不以为怪。
Did you know he was having an affair?
你知道他有外遇了吗？