Spur wheel
n. 正齿轮
🧩 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;
wheel
[wil]
n. 轮子;旋转;Wheels 汽车;有…轮子的汽车（或自行车等）;
vi. 转动，旋转;突然转变方向;
vt. 推;拉（车）;使变换方向;（使）迅速转身;
🗣️ 情景例句
Nice to meet you.
很高兴见到你。
If there were no clouds, we should not enjoy the sun.
吃得苦中苦，方知甜中甜。
With the hand held high in the air,
把手高高举在空中握住绳子，