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
In China, Spring Festival is the biggest holiday of the year, but in the west Christmas is the biggest.
中国最大的节日是春节，西方最大的节日是圣诞节。
I know the boy whose father is a professor.
我知道那个男孩的父亲是大学教授。
Let me give you an indication.
我可以提示一个想法。