S.d.p.
[医] 右骶后(胎位)
🗣️ 情景例句
Yes, Dad.
好的， 爸爸。
It is better to be safe than sorry.
事后追悔不如事前稳妥。
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，