美国俚语:Up to you什么意思?

It's up to you. 的意思是“由你来决定，由你说了算！”

例句：

You can have any sweater you want . It’s up to you. The color’s up to you.

你想穿什么毛衣，你自己定，颜色由你来选。

I don’t know. It’s up to you.