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
How do you do?
您好！
Early mistakes are the seeds of future trouble.
早期的错误可以酿成日后的麻烦。
How could we do that?
怎么说呢？