Now that you mention it... 既然你提起了...
这句话是作为开头语之用,当别人提起了什么事,刚好让你想起来某些事情的时候,就可以说Now that you mention it,以表达你顺便要谈一些问题或事情.
A:Do you need anything at the store? 你要我从店里帮你带些什么吗?
B:Now that you mention it, could you get me a chocolate bar?
既然你都自己问了,那你能帮我带个巧克力棒吗?
A:You don't look so good. Are you feeling OK? 你的气色看来不太好,你感觉还好吧?
B:Now that you mention it, I am feeling a little queasy.
既然你都问了,我感觉有点想要吐.