Traditionally when we have looked for genetic risk factors for, say, heart disease, we have assumed that the blood will tell us what's happening in the tissue.

传统上，比方说我们为心脏病寻找遗传危险因子的时候，我们会假设通过血液能告诉我们组织中发生了什么事。

youdao

Nick has lost a lot of blood, but he's lucid enough to tell her that if he is admitted to the hospital with a gunshot, the doctors will call the police and blow their cover.

Nick失血很多，但他神志还算清醒，他告诉Veronica，如果他被医院发现是受了枪伤，医生会报警，他们就不安全了。

youdao

Give this affair to Clemenza and tell him to be sure to use reliable people, people who will not be carried away by the smell of blood.

把这件事情交给克莱门扎，告诉他一定要用可靠的人，不会因血腥味失去自制力的人。

youdao

We cannot tell whether they are 'blood diamonds' or not." "That will be part of the investigation because you still need people to say "Yes,I know these diamonds;

VOA: standard.2010.08.09