Trapezidal thread
[机] 梯形螺纹
🧩 词语组成解析
[机] 梯形的
thread
[θrɛd]
n. 线;线索;线状物;螺纹;
vt. 穿成串;将（针、线等）穿过…;用…线缝;给…装入（胶片、狭带、绳子）;
🗣️ 情景例句
I'll take the application and letter tomorrow when I come in.
明天我来的时候，会把申请表和推荐信带来。
I'll back you up.
我支持你！
I can't decide!
我拿不准！