Lef
[医][=leukokinsis-enhancing factor]白细胞移动增强因子
🗣️ 情景例句
And my friend Alexandra is going back to Greece ...
我的朋友Alexandra就要回希腊去了……
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
No, it won't. I think it'll get better soon.
不，不会的。我想天气很快会变好的。