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
What makes you feel good?
什么使你感到高兴？
Poor but honest.
虽贫穷，要诚实。
But we won't have our big family get-together until Christmas.
但我们要等到圣诞节才会有家庭大团圆。