Depth of thread
[化] 螺纹深度
🧩 词语组成解析
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
Tom doesn't have a steady girlfriend at the moment.
汤姆眼下还没有一个已确定关系的情侣。
There is something in what she said.
她说的话里有些重要的东西。
Porpoises and sharks are natural enemies.
海豚和鲨鱼是天然仇敌，