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
How are you feeling?
你感觉怎么样？
If you always say NO,never be married.
常常说“不”字，永远难结婚。
Then the sound of rumbling thunder reached the watchers on the shore, as cargo, ballast,
岸上的观众听到船上发出了雷鸣般的轰响。当物品、压舱物、