It's laziness, pure and simple.

这全然是懒惰。

《牛津词典》

It's a business proposition, pure and simple. No strings attached.

这只是个业务建议，仅此而已，没有任何附带条件。

《牛津词典》

The basic story is that the stimulus was too small, pure and simple.

基本的情况是刺激计划规模太小、太单纯，也太简单。

youdao

"High oil prices are going to make people use less oil, pure and simple, " Pizer says.

NPR: Will Pricey Fuel Prompt Greener Energy Habits?

Bottom line: if you own clubs, they should be custom fitted, pure and simple.

FORBES: Golf Resolution 2013: Fastest Way To Lower Your Handicap Right Now

This spring, it was white, a shade so pure and simple it strips craftsmanship to the core.

WSJ: WSJ. Magazine March 2013 | Editor's Letter