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
Can we? When?
行吗 ？什么时候？
There it is.
门在那儿。
During these tests she was able to read a newspaper through an opaque screen and,
在这些测试中，她能隔着不透明的屏幕读报纸。