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
Tell me about it.
说给我听吧。
Maybe some other time.
也许下一次吧。
Some of the apples are hard to reach.
有些苹果很难够得着。