Number of threads
[化] 螺纹扣数
🧩 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];
n. 线；相关串连；线程（thread的复数）
🗣️ 情景例句
Let's eat!
吃吧！
As far as I'm concerned, you can stay out all night.
对我来说，你可以整晚都在外面。
CUSTOMS OFFICER: Are your friends tourists too?
你们的朋友也是来旅游的吗？