Reenforcement
[ [ˌri:in'fɔ:sment] ]
第5级
其它 Other
[医] 增强, 增力
🗣️ 情景例句
Well, when you called,
嗯， 你们打电话来时，
He has a letter.
他有一封信。
The factory has been there for several years.
这家工厂在那儿已有好几年了。