Volunteers were told to think about yawning, while they breathed either normal air, pure oxygen, or an air mixture with an above-normal level of carbon dioxide.

当志愿者在正常的空气中、纯氧的环境下，或者混有超过正常的二氧化碳含量的空气中呼吸时，他们被要求要想着打哈欠。

youdao

Volunteers were told to think about yawning while they breathed either normal air, pure oxygen, or an air mixture with an above-normal level of carbon dioxide.

当志愿者在正常的空气中、纯氧的环境下，或者混有超过正常的二氧化碳含量的空气中呼吸时，他们被要求要想着打哈欠。

youdao

Conflict is normal, but it is not normal for so many to be killed in this way-at least in recent years.

这样的冲突再正常不过了，但是至少在近几年，如此之多人丧生就不正常了。

youdao

But improved treatments to ease the effects of the disease make it possible for many patients to live almost normal lives.

VOA: special.2009.04.07

But that wouldn't have been sort of a normal, everyday way to talk about a stranger in the ancient world.

但即便在古代，对陌生人这么称呼也不并不常见。

耶鲁公开课 - 新约课程节选

I just want to emphasize one more time, that the overwhelming normal situation is the first one I described, friendly relations.

我想再强调一遍,正如我最初所说的,两者之间大多情况下都是友好关系

耶鲁公开课 - 古希腊历史简介课程节选

Zero interest rates are not normal, and the economy will not be able to get back to normal until the Fed gets monetary policy back to normal.

FORBES: We Don't Need TAG Accounts, We Need Sanity At The Fed

Secondly, help the economy get back to normal by anticipating it getting back to normal.

WSJ: Jenkins: Lost Decade, Revisited

It not only feels normal to have Mr Bloomberg as mayor, but also normal to think that he is rather good at it.

ECONOMIST: Lexington