S.d.a.
[医] 特殊动力作用, 右骶前(胎位)
🗣️ 情景例句
Nowadays in the USA, more and more young people are losing interest in politics.
正在的美国，越来越多的年轻人对政治丧失了兴趣。
Forget it.
算了吧。
You must keep it a secret. You mustn't tell anybody else.
你必须保密，谁都不能讲。