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
Building a nuclear power plant now would not be doing the environment any favors.
建核电站对于环境没有什么好处。
It's earier to run down the hill than go up.
下山容易上山难。
Thank you. Goodbye!
谢谢您。再见！