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
I'm sure glad you're here, Grandpa.
您来这里我真高兴， 爷爷。
I'm afraid not. She doesn't have any openings in the morning.
恐怕不行。上午她没有空。
Yes, it was a very good match.
是啊，是场好球。