Lef
[医][=leukokinsis-enhancing factor]白细胞移动增强因子
🗣️ 情景例句
Don't worry, Alexandra.
别担心，Alexandra。
Kept waving to her mother until the train was out of sight.
不断地冲她的母亲挥手，直到火车驶出了视线。
I thought you wanted to visit your friends.
我原以为你要去拜访朋友。