Nbcs
[医][=newborn calf serum]新生牛血清
🗣️ 情景例句
Anything interesting happening?
有什么有趣的事情发生吗？
She is timid and completely at a loss what to do.
她羞臊得不知所措。
she rang up her daughter and asked for her help in what she described as a little spot of bother.
她只得打电话向女儿求援，说她碰到了一点儿小麻烦。