Primer pump
[化] 起动泵
🧩 词语组成解析
primer
['praimə]
n. 底漆;启蒙读本;入门书;
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
Of course you recognize him.
你当然认得他。
How much is a round-trip ticket to Beijing?
一张到北京的来回票要多少钱？
Open the window and air the room.
打开窗子，给房间通通风。