Blocknut
保险螺帽, 防松螺帽
🗣️ 情景例句
I would like to make an appointment for tomorrow morning please.
我想预约明天早上见面。
After dinner sit a while, after supper walk a while.
午饭后要坐，晚饭后要走。
That's an English car!
那才是一辆英国产的小汽车！