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
Robbie, the dinner was terrific.
Robbie，晚餐真是棒透了。
He that lives well is learned enough.
生活好者，博学多才。
Future historians will be in a unique position when they come to record the history of our own times.
未来的历史学家在写我们这一段历史的时候会别具一格。