Prca
[医][=pure red cell agensis]单纯红细胞再生不良
🗣️ 情景例句
He's gone for the day.
他整天都不在。
Thank you for giving me an opportunity to speak about myself at this special occasion.
谢谢大家给我机会在这样一个特别的场合介绍我自己。
The life forms most likely to develop on a planet would be bacteria.
行星上最容易生存下来的是细菌。