Reversing pump
[化] 换向泵
🧩 词语组成解析
a. 回动的\\n[化] 换向
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
and it is on a half-acre lot.
用地半英亩。
Not much.
没什么。
Good afternoon, class! Who's on duty today?
同学们，下午好！今天谁值日？