Blocknut
保险螺帽, 防松螺帽
🗣️ 情景例句
Please, come in. Join us.
请进。跟我们一起吃吧。
When the clock strikes twelve at midnight.
当午夜十二点的钟声敲响时。
Yet their present development is wholly different,
但是，这两个地方目前的发展程度完全不一样。