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
I can't eat another bite.
我一口也吃不下去了！
What's your brother planning to do tomorrow?
你的兄弟计划明天做什么？
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。