Screwthreads
(screwthread 的复数) n. 螺纹
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
It's none of your business.
关你屁事！