Back impeller
[化] 后弯叶轮; 后弯式叶轮
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
n. 推进者, 叶轮\\n[化] 叶轮
🗣️ 情景例句
The costs of college get higher every year.
学费逐年增加，越来越贵。
Practice is better than precept.
身教胜于言教。
He used to sleep during the day and work at night, quite unaware of the fact that he had become the ghost of Endley.
白天睡觉，夜里出来干活，一点不知道自己已成了恩得利家场的活鬼。