Demonstration jacks
[计] 检验塞孔
🧩 词语组成解析
n. 抓子游戏；家伙；小伙子（jack的复数）
🗣️ 情景例句
Let's drill them in English pronunciation.
我们来给他们做英语发音练习。
My uncle was a pilot with the airlines.He just retired.
我的叔叔是航空公司的一名飞行员，他刚退休了。
When you have found a building in which to start your school.
你找到开办学校的楼房后