If an interview is too easy, it's a sure sign that you haven't got the job.

如果面试太简单，那必定表示你没得到那份工作。

《牛津词典》

It's a sure sign of economic recovery.

这是经济复苏的确切迹象。

《牛津词典》

Mentioning religion is a sure way to make him squirm.

提及宗教肯定会使他感到窘迫。

《柯林斯英汉双解大词典》

All the storytellers must receive training from a SpeakeasyDC teacher to make sure their stories are well developed with interesting details.

VOA: special.2009.03.27

People are already shaking their heads over me and any immediate God further professional use on my part of the word "God" except as a familiar, healthy American expletive will be taken or rather confirmed as the very worst kind of name dropping and a sure sign that I'm going straight to the dogs.

人们经常对我表示不同意，以及对,我一用那个字“,除非作为熟悉的健康的美式感叹词或咒骂词时,它们会被认为是最差的名字,也肯定是我向那些狗前进的标志。

耶鲁公开课 - 1945年后的美国小说课程节选

It kind of depends. Probably like 4 hours a day, 5 hours a day, I'm not sure.

视情况而定。大概每天4，5个小时，我也不太确定。

关于学校生活 - SpeakingMax英语口语达人

We spotted the blue flash of a kingfisher, a sure sign that edible fish resided below.

BBC: Paddling Los Angeles�� rebounding river

More than four in five are registered to vote, a sure sign of civic involvement.

FORBES: Who's Racist Now? Europe's Increasing Intolerance

Cutting taxes without controlling spending has proved to be a sure recipe for growing debt.

FORBES: Fiscal Choice For America: Gloom Or Doom, Says CBO