Ram pump
[化] 柱塞泵
🧩 词语组成解析
ram
[ræm]
n. 公羊;<天>(R-)白羊（星）座;<机>夯;攻城槌;
vt. 夯实（土等）;猛撞;猛压;反复灌输;
vi. （使）猛烈撞击;迅速移动;迫使…明白;
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
Lacks courtesy is ill-mannered.
不礼貌，举止不当。
I got sick and tired of hotels.
我讨厌旅馆。
He did not know from which part of Africa his ancestor had come.
他不知道祖先来自非洲的什么地方。