Chelon
螯合剂
🗣️ 情景例句
Where was that?
在什么地方？
How's your cousin?
你的姐妹好吗？
Four years later, she left the children's home and entered an institution for the blind, where she learnt braille.
4年之后，她离开孤儿院，进入一盲人学校，学习布莱叶盲文。