Lecithoprotein
卵磷蛋白
🗣️ 情景例句
to read to the students--their own children, really.
共同为学生们， 其实就是他们自己的孩子， 朗读
If you want knowledge, you must toil for it.
若要求知，必须刻苦。
By this time her legs were beginning to tremble,
这时她两腿累得开始发抖，