Packless pump
[化] 无填料泵
🧩 词语组成解析
[化] 未包装的; 无填充的; 无填料的
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
in the school and loving every minute of it.
在学校 ，且乐此不疲， 时时如此。
Sloth is the key of poverty.
惰能致贫。
He's been there for over two years. He's been there since two years ago.
他到校有两年多时间了。他两年前就到那儿学习了。