She's always trying to get something for nothing.

她总想不劳而获。

《牛津词典》

It would perhaps be nice to get something for nothing.

甚至可能很棒的是你将获得不曾拥有的。

youdao

They have discovered that all of us love to get something for nothing.

她们发现我们所有的人都喜欢不出钱而得到东西。

youdao

Charities will get something for nothing but will then pay for more sophisticated services.

BBC: Believe.in and the business of charity

Voters thought they could get something for nothing and for a very long time, governments could deliver.

FORBES: When Sovereign Default Is The Most Attractive Option

The important thing to remember about social-protection rules is simply that, in economics, you rarely get something for nothing.

ECONOMIST: Bearing the weight of the market | The