Lef
[医][=leukokinsis-enhancing factor]白细胞移动增强因子
🗣️ 情景例句
because I like being my own boss.
是因为我喜欢自己当老板。
Some relative clauses in the contract have to be amended owing to the unexpected situation.
由于这种难以预料的情况，合同中的有关条款不得不做些修改。
The men were now obliged to try once more.
工人们只得再来一次。