S.d.a.
[医] 特殊动力作用, 右骶前(胎位)
🗣️ 情景例句
Sounds good. I'll be there at 7.
很好。我7点会到。
How was your flight?
你的航班怎样？
We want to try this component as a sample.
这种组件我们想试个样品看看。