Pinion rack
[化] 啮合齿条
🧩 词语组成解析
pinion
['pinjən]
vt. 抓住[捆住]（双臂）;
n. <术>小齿轮;
rack
[ræk]
n. 行李架;支架;刑架;（羊、猪等带前肋的）颈脊;
vt. 使痛苦，使焦虑;剥削，榨取;用刑拘折磨;
🗣️ 情景例句
It's a pleasure to meet you.
认识你是我的荣幸。
You roll my log and I'll roll yours.
互相吹嘘。
Where is the rest room, please?
请问洗手间在哪？