Defense contractor
国防承包商
🧩 词语组成解析
contractor
[kən'træktə]
n. 订约人，承包人;收缩物;
🗣️ 情景例句
Hey, that's terrific, Mom!
嗨 ，太棒了， 妈妈！
The place is too stony for farming.
这地方太多石块，不适合耕种。
Sometimes, my grandma decides to buy one big birthday present for both of us.
有时，奶奶决定给我俩就买一件大生日礼物。