All his little schemes for making money seem to come to grief.

他为赚钱而耍花招看来都会失败。

He has devised a scheme for making money.

他想个赚钱办法。

He evolved a system for making money quickly.

他想套快速赚钱方法。

He decided to turn his hobby into a lucrative sideline.

他决把自己爱好变成赚钱业。

This is not money-making proposition.

这不是个赚钱事业。