I can't believe you still haven't told mom.

I didn't have a window.

好,这姐姐对弟弟说,Dude, I can't believe you still haven't told mom.

她说,哥们,我真不敢相信啊,这事居然你还没跟咱妈说。

这小伙子回答她说,I didn't have a window.

这儿window并不是窗户的意思。

Window在英文中可以指,完成一件事情或者做一件事情的最佳时机。

那么还有一个类似的表达呢,叫做window of opportunity。

这个短语的意思也是指稍纵即逝的好时机。