“money for jam”别理解成“买果酱的钱”，而是容易赚的钱，不费吹灰之力的事。

【例句】
I had always believed that the fashion model's job was money for jam.
我总是觉得时尚模特的工作是很容易赚钱的。

All I had to do was to walk up and down the room and smile at the customers. It was money for jam.
我所要做的就是在屋里走来走去，对顾客笑脸相迎，不费力气就可赚钱。