Core diameter of thread
[机] 螺纹根径
🧩 词语组成解析
core
[kɔ:]
n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心;
vt. 去（果）核，挖去…的果心;提取岩芯（样品）;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
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
If you had your choice of all the places in the world.
假如你可以选择世界上的任何地方。
John stopped to study.
约翰停下来去学习。
He was called Bapu, meaning father - because he was the father of the Indian nation of the twentieth century.
他被人们称为巴普，意国是父亲--因为他是20世纪的印度民族之父。