Ratchet gearing
[机] 棘轮联动
🧩 词语组成解析
n. 棘轮, 棘爪\\n[机] 棘轮, 棘齿轮
n. 传动装置\\n[经] 比例结合, 齿轮作用
🗣️ 情景例句
for the one seat on the Riverdale School Board,
争夺Riverdale联合校董会一个席次
I made a reservation in tokyo.
我在东京预订的。
One can tell the difference almost at a glance, for a spider always has eight legs and insect never more than six.
人们几乎一眼就能看出二者的差异，因为蜘蛛都是8条腿，而昆虫的腿从不超过6条。