S.d.a.
[医] 特殊动力作用, 右骶前(胎位)
🗣️ 情景例句
How are things with you?
一切都好吗？
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
Fine. What's the weather like in Beijing?
很好。北京的天气怎样？