Blocknut
保险螺帽, 防松螺帽
🗣️ 情景例句
That's all right. We don't go to bed early.
那没关系。我们不会睡得太早。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
He's going to school.
上学。