I think the funny gas is gone.

笑气看来跑了。

I see why it's called laughing gas.

- 我明白为什么它被称为笑气了。

Nitrous oxide is commonly known as laughing gas.

【know】氧化氮通常被称作笑气。

And in June, a phase II trial found that nitrous oxide—laughing gas—might have a similar effect.

6 ，项 II 期试验发现， 氧化氮（笑气）可能具有类似。

And from Antarctica: Scientists found that king penguin excrement releases nitrous oxide–also known as laughing gas.

来自南极洲：科学家发现王企鹅排泄物会释放氧化氮——也称为笑气。

Whippits — also called whip-its, whippets, and laughing gas — are the most popularly used inhalants according to the Substance Abuse and Mental Health Services Administration (SAMSHA) .

根据物质滥用和精神健康服务管理局（SAMSHA）数据，气弹奶油（whippits，whip-its，whippets）——也被称为笑气——是最常用吸入剂。

There's also nitrous oxide, known as laughing gas, but it's no laughing matter, seeping out of farm fields and elsewhere and making up six percent of the problem.

还有氧化氮，被称为笑气，但这不是笑话，它从农田和其他地方渗出，占问题 6%。