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
Yes, what can I do for you?
是的，我能为您效劳吗？
Mike is already a junior.
迈克已经大学三年级了。
it is customary for the new arrival to be placed between the stalls of two captives whose training is already well advanced.
通常是把新到的安置在两头训练得很好的大象的象厩中间，