S.d.a.
[医] 特殊动力作用, 右骶前(胎位)
🗣️ 情景例句
We have around 3,000 workers.
大约有3000名职工。
I'm looking for my baggage.
我正在找我的行李。
sometimes as much as twelve feet in length.
有时长达12英尺。