Most states, for instance, have a blood test requirement, but a few do not.

例如，大多数州都有验血的要求，但也有一些州没有。

youdao

This is a quite common requirement for setting up a test environment or a disaster-recovery site.

在设置测试环境或灾难恢复站点时，这是常有的需求。

youdao

There should be test cases for each requirement that proves that the requirement has been met.

对于提供的每一个被满足的需求都要有测试用例。

youdao

It took another three years to figure out a way to grow the virus in a test tube, a requirement for testing an antiviral.

FORBES: Viral Vertigo

The sheer scale of Spain's borrowing requirement will be a major test of the reawakened investor appetite for Spanish debt.

CNN: Spain escapes aid but doubts remain