Definition: used to show what money or time is used for Level: A2
她拒绝在一双鞋上花费超过20英镑。
She refuses to spend more than £20 ___on a pair of shoes.
我已经在这上面浪费了太多时间。
I've wasted too much time ___on this already.
我爱它，我把我所有的时间都花在它上面。
I love it and I spend all my time ___on it.
