Checknut
防松螺母, 保险螺帽, 锁紧螺母
🗣️ 情景例句
Just fine.
相当不错。
March comes in like a lion and goes out like a lamb.
三月来如雄狮，去如绵羊。
and no father is confronted with his inability to 'buy'an education for his child.
也不存在父亲无力为孩子支付教育费用而犯难的问题。