Checknut
防松螺母, 保险螺帽, 锁紧螺母
🗣️ 情景例句
Have you ever owned an animal?
你曾养过动物吗？
Yes. And please ask me the next time you want to use something.
是的。另外，如果下次要用什么东西，请先问我一声。
Time is more valuable than money.
时间比金钱宝贵。