Checknut
防松螺母, 保险螺帽, 锁紧螺母
🗣️ 情景例句
Thank you, that was a great meal.
谢谢，真是一顿好饭。
Yes. It's right here.
好的，就在这里。
When you rescued your trousers, did note in your back pocket? When you rescued your trousers, did you find the note was whiter than white?
当你把裤子抢救出来时，你有没有发现那张纸币已经变得比白纸还白？