Extrasin
胸腺素
🗣️ 情景例句
I feel sick as a dog.
我病得很厉害。
This problem is hard to solve.
要解决这个问题不简单。
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189
然而阳近一段时间，老年养老金只付给那些最穷的人，因为失业的人数一直在增长。