Lactoferrin
[机] 乳铁蛋白
🗣️ 情景例句
take a vacation away from the family--alone.
离开家人而单独在一起渡个假。
Don't let me down.
不要让我失望。
Look at those black clouds. It's going to rain.
看那成堆的乌云，要下雨啦！