Lef
[医][=leukokinsis-enhancing factor]白细胞移动增强因子
🗣️ 情景例句
There was no way he could solve the problem.
他根本解决不了这个问题。
I wonder if you are on my side.
我不知道你是否站在我这边。
She tried to explain the situation, saying 'It's only me', but it was too late.
她说了声“是我，别怕！”然后想进行一番解释，但已来不及了。