Apochromatism
复消色差
🗣️ 情景例句
so she had to take an earlier flight today.
所以她不得不在今天搭早一班的班机。
How long have you studied English?
你学英语多久了？
Yes, that's possible, but we can't be sure.
是的，有可能，可是我们不能确定。