Thread mandrel1
[机] 螺纹心轴
🧩 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
I've been in China to work on the new project.
我一直在中国搞一个新项目。
If you swear you will catch no fish.
咒骂无益，于事无济。
My name is Wong.
我姓王。