Reserv(ed) pump
[化] 备用泵
🧩 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
Good-bye.
再见。
First impressions are most lasting.
最初的印象最为持久。
Good morning. Sit down, please.
早上好，请坐。