Blocknut
保险螺帽, 防松螺帽
🗣️ 情景例句
I'm going to use it for business.
我会在业务上用到它。
Beware of a silent dog and still water.
警惕无声之狗会咬人，平静之水会覆舟。
But how did you get here?
不过你是怎么来的？