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
Are you kidding?
在开玩笑吗?
I want to reserve a seat from los angeles to tokyo.
我要预订一张从洛杉矶到东京的机票。
This shows how long it was before we deemed it necessary to make sure that all our children could share in the knowledge accumulated by the'happy few' during the past centuries.
这说明，经过了多么漫长的时间之后，我们才认识到，有必要确保我们的孩子享有多少个世纪以来由‘少数幸运者’所积累起来的知识。