Culdocentesis
后穹窿穿 刺术
🗣️ 情景例句
Are you traveling alone or whth a friend?
你是一个人旅行还是结伴旅游？
I hope you can pass the examinations.
我希望你的考试能通过。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。