Iec
[化] 离子交换色谱法
🗣️ 情景例句
We live with my parents, Dr. and Mrs. Philip Stewart.
我们和父母住在一起 ，我父母是Philip Stewart夫妇。
Can I help?
要我帮忙吗？
The dream he had had for so many years ended there.
他多年来的幻想从此破灭。