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
Next week I'm taking my driving test.
我下星期考车牌。
He has a dish of jam.
他有一碟火腿。
It was warm last Sunday, so I went and sat on the river bank as usual.
上星期日天气很暖和。于是我和往常一样，又去河边坐着。