Locknut
n. 防松螺母
🗣️ 情景例句
I need to confirm my reservation.
我要确认我的预定。
I am pleased to say that we will be able to deliver the transport facilities you require.
很高兴告诉您你方要求的运输设备我方可以发货。
You are just in time.
你来得正是时候。