Flavolutan
孕酮
🗣️ 情景例句
Lacks confidence and poise is nervous and ill at ease.
信心不足，不够自信，精神紧张，心神不定。
To know the disease is half the cure.
找出病根等于治愈了一半。
However, they have decided to use the post office.
然而她们还是决定利用邮局。