Transanhydrisation
酐交换作用
🗣️ 情景例句
Well, my family, I guess.
嗯， 我一家人 ，我想。
All things are difficult before they are easy.
凡事都是先难后易。
Perhaps she understood me because she herself had always had very weak eyes.
当我回顾那些岁月时，我深深地为安妮的智慧所打动。她理解我，也许是因为她本向来视力就很弱。