Piston pump
[化] 活塞泵
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
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
Where is your birthplace?
你出生在哪里？
Our packing charge includes $1 for the drum, which sum will be credited on return.
包装费中有1美元是包装桶的费用，此费用在桶还给我们时可退回。
CUSTOMS OFFICER: Are you tourists?
你们是来旅游的吗？