Pin gear
[機] 針齒輪, 銷齒輪
?? 詞語組成解析
pin
[pin]
n. 釘;別針，扣針，飾針;大頭針;沒價值的東西;
vt. 壓住;（用釘等）釘住，釘住，別住，扣住;用障壁等)圍住，關住（俚語）抓住;[軍]牽制;
adj. 針的;釘的;銷的;大頭針的;
gear
[ɡ?r]
n. 齒輪;排擋;傳動裝置;衣服 ;
vi. 接上;調和;
vt. 使適應;裝上齒輪;用齒輪連接;
??? 情景例句
Paper or plastic?
現金還是信用卡？
All shall be well, Jack shall have Jill.
有情人終成眷屬。
From a heavy gun that was raised, the captain realized that the ship must have been a cruiser.
從撈起的一門大炮來看，船長認為那艘船一定是艘巡洋艦。