藤原惠津子
also could have assembled new RNAs from early nucleotides. Certain catalytic RNAs can
Jacksperoll
I spent six yuan buying that book.It took me six yuan to buy that book.I paid six yuan for that book.That book cost me six yuan.
湘剑狠皖
I spent 6yuan buying that bookIt took me 6 yuan to buy that bookThat book cost me 6yuan