Rotopiston pump
[化] 转子活塞泵
🧩 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
Mr. Nelson.
Nelson先生。
She took an aspirin to relieve her headache.
她吃了一片阿斯匹林以解头痛。
After having been instructed to drive out of town, I began to acquire confidence.
在接到把车开出城的指令后，我开始有了信心。