Pump duty
[化] 泵的排量; 泵输送量
🧩 词语组成解析
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
She was sick so the didn't attend her classes.
她生病了，所以没上学。
Thank you for your attention.
谢谢大家专心聆听。
Who was second? Who was third?
谁是第二？谁是第三？