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
Compliments of the Watermill Inn. Watermill Inn
请客。
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
and then only if we are very original.
就这也需要我们有独创的思想。