Triangular thread
[机] 三角螺纹
🧩 词语组成解析
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
And have a good stay in the Big Apple.
祝您在纽约愉快。
Whom will you invite to the wedding?
你将邀请谁参加婚礼？
What are you doing?
你在干什么？