Refractory anemia
难治性贫血，顽固性贫血
🧩 词语组成解析
🗣️ 情景例句
She took a medical course.
她选读医学课程。
We are sorry to delay the shipment because our manufacturer has met unexpected difficulties.
恕延期货船，因为我们厂家遇到了预料不到的困难。
Today there are special kindergartens for Maori children, and the Maori language is now taught in more and more schools.
如今已有专门为毛利儿童而设的幼儿园，而且在越来越多的学校里讲授毛利语。