Nbcs
[医][=newborn calf serum]新生牛血清
🗣️ 情景例句
Quality is more important that quantity.
质量比数量更重要。
Easy come, easy go.
易得易失。
She got up before 7 o'clock in the morning, and quickly washed her hands and face.
00以前起床，快快地洗手洗脸。