Facultatively
特许地; 能力地; 偶发地; 兼性地
🗣️ 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。
The sky is not less blue because the blind man does not see it.
天不会因瞎子看不见而减其蓝色。
Yes, it is.
是的。