Ally: Andy, which ice-cream flavor will you choose, vanilla or chocolate?

Andy: Chocolate, my favorite flavor. That’s a no-brainer.

我问Andy他选那种冰淇凌，香草的还是巧克力的。他选了巧克力的，而且说这个选择对他来说是no-brainer。

No brainer 是什么意思呢？没脑子吗？不是的。这个词组是指非常简单的事情，根本不费脑子。

This sounds like a no-brainer, but it's harder than you think.

这听起来很简单，但比你想的要难。

This question is easy. It’s a no-brainer to me.

这问题真简单，我都不用动脑子。

Andy: Hey, Ally. I found math quiz online. You might want to try it.

Ally: OK. Let me take a look. Such an easy quiz. It’s a no-brainer.