Spur-gear
直齿轮
🧩 词语组成解析
spur
[spɝ]
n. 马刺;激励因素;支柱;（公路或铁路的）支线;
vt. 策（马）前进;（尤指用马刺）策（马）加速;鞭策;
vi. 策马飞奔;急速前进;
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
Whereabouts are you headed?
你要去哪？
I will have done it by the time you come back.
在你回来之前，我会做完它。[将来完成时，表示将完成…，会做完…]
There had been fuel on the ship, but this did not appear to have caused the fire, and little smoke was produced.
很显然，船舱里已经发生了一场烈火，但是船舱内壁却完好无损。船上存放着汽油，但火灾似乎不是它引起的，因为没有冒出什么烟来。