Rcit
[医][=red cell iron turnover rate]红细胞铁替换率
🗣️ 情景例句
Grandpa wanted to lend us the money to buy one,
爷爷要借给我们钱去买房子，
While you were writing letters,I was reading a book.
当你正在写信时，我正在读一本书。
What's the time?
几点了？