你知道这个世界上有一种叫做双头白化蛇的生物吗？它居然有两个脑袋，每一条蛇都能够单独思考和进食。

Have you ever known there are such creatures as an albino two-headed snake? It has two brains. Each head, principal and subordinate, thinks and feeds separately.

youdao

我第二天早晨立马飞往马里兰，而母亲告诉我的第一句话居然是：“真的对不起，我知道你已经经历了太多的不幸。”

I flew down to Maryland first thing the next morning. And you know the first thing she told me?

youdao

我从来不知道你居然会这么仔细的观察我的心情变化。

I never realized you were tracking my moods so closely.

youdao