Lef
[医][=leukokinsis-enhancing factor]白细胞移动增强因子
🗣️ 情景例句
I used to stop for hitch-hikers'till the day I picked up that maniac.
自从有一天搭了一个精神病人以后，我碰到搭顺风车的人就不再停下来了。
It is more blessed to give than to receive.
施恩比受惠更有福。
He was very healthy and happy, but he could not look after himself.
他很健康，非常欢快。但不能照料自己。