Pin gear
[机] 针齿轮, 销齿轮
🧩 词语组成解析
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
gear
[ɡɪr]
n. 齿轮;排挡;传动装置;衣服 ;
vi. 接上;调和;
vt. 使适应;装上齿轮;用齿轮连接;
🗣️ 情景例句
Did she mention when she would arrive?
她说过什么时候到吗？
Went on to get his master's degree from harvard.
然后在哈佛大学取得了学士学位。
Open the door, please, Lucy. Lily, is she opening the door?
露茜，请把门打开。莉莉，她在开门吗？