Main pulley
[化] 主动皮带轮
🧩 词语组成解析
main
[meɪn]
adj. 主要的，最重要的;全力的;
n. 最主要的部分，重点;主要管道;体力;[航海]公海;
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, let me think.
好， 让我想想。
He is attending a conference now.
他正在出席会议。
It was only possible for the Ombudsman to find this out by sending one of his representatives to check the facts.
司法特派员只有派他的代表去核对事实才能了解真相。