"If not checked, this could lead to a national calamity," he said.

“如果不加以遏止，这会导致一场全国性的灾难。”他说。

youdao

If not checked, success has a way of covering up small failures. This is why, I think, so many companies fail.

如果不加以审视，成功就会设法掩盖种种小的失误。我想，这就是很多公司最终失败的原因所在。

youdao

Last time we checked the type and said if it is a float you're okay. If not, carry on.

并且会告之是否是一个浮点数,如果不是继续循环。

麻省理工公开课 - 计算机科学及编程导论课程节选

AIDS. The evidence from countries farther north was that the epidemic, if not checked, would kill millions.

ECONOMIST: Mandela��s heir

Really, he would have been in the garage with no radiator in it if I had not checked up twice.

NPR: Kasey Kahne Wins 1st Career Race At Bristol

Whether you are looking for candidates, employers or service providers, making assumptions about their ability to fill a need can get you in hot water if those assumptions are not checked out.

FORBES: Why Throwing Spaghetti at the Wall Doesn't Work