Counting these costs would likely make the project non-viable even if everything else went well, which rarely happens.

把这些成本计算在内的话，这项工程可能就会行不通了——即使一切进展顺利，而这几乎是不可能发生的。

youdao

There is a general perception which says "it would be best if we could purchase our complete development environment from a single vendor," but in reality this happens rarely.

通常有这样一种说法“如果我们能够从一个供应商那购买我们自己的完善的开发环境，我们将成为最好的，”但是事实上这种情况很少发生。

youdao

She was easy to talk to and made me feel welcomed and at ease (which rarely happens for me at salons) The place was cozy, neat and a wonderful environment to get your hair done.

FORBES: Think Yelp is Unbiased? Think Again!!