Don't expect easy returns without doing hard work.

不努力工作就想获得回报，是不可能的。

youdao

Return the borrowed things on time, you'll be welcome next time.; It's easy to borrow again if one returns the borrowed things in time.

好借好还，再借不难。

《新英汉大辞典》

Both of these approaches suffer from the further disadvantage that it is easy to compose a query that returns no results.

这些方法都带来了更深层的弊端：容易产生不返回任何结果的查询。

youdao

To a society used to easy returns, this was a shock.

ECONOMIST: Is Dubai being hit by the turmoil?

As easy returns ebb, pressure mounts to accept more risk.

FORBES: Banking Trends Offer Clues To The Real Business Cycle

If it's so easy to juice returns with a covered-call strategy, why doesn't everybody do it?

FORBES: Magazine Article