Beam(-pumping) unit
[化] 抽油机
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
She cheated on the examination.
她考试作弊。
All are brave when the enemy flies.
敌人逃跑时，个个都勇敢。
Yes, Miss Gao! How many are there?
可以，高老师，有多少呢？