Obst
[医][=obstetrician]产科医生
🗣️ 情景例句
Oh, you think you're going to have a hard time
你认为需要大费周折
We went to a concert last night to hear the symphony orchestra.
我们昨晚去了一个音乐会听交响乐乐队演奏。
One minute and twelve seconds.
1分12秒。