Blocknut
保险螺帽, 防松螺帽
🗣️ 情景例句
She tends to talk too much.
她有饶舌的倾向。
And good luck to this wonderful new branch.
我祝愿这家新分行好运。
I'm planning to do a special study of satellites next term.
我计划下学期就卫星的问题做些特别的研究。