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
Did you know I can type almost 60 words per minuter?
你知道吗，我能每分钟打60个字。
Are you in touch with him now?
你现在和他有联系吗？
He has no choice but to wait.
除了等待，他别无选择。