For them, it is no laughing matter at all.

对它们来说，这绝不是一件可以一笑了之的事情。

youdao

And a new study shows that biochar could have an impact on agriculture's other greenhouse gas emission: nitrous oxide, or laughing gas, which is no laughing matter when it comes to climate change.

一项最新研究表明生物炭对诸如一氧化二氮、笑气之类由农业生产造成的温室气体排放可能会产生影响，这些气体的排放对气候变化来说可不是什么好事。

youdao

In one case a child was followed. Whether those involved are doing it for a joke or not, this is no laughing matter.

在一次案件中，一个孩子被尾随。不论这些人是否在开玩笑，这一点都不好笑。

youdao

Unfortunately, its intended purpose is no laughing matter: It is designed to create the international legal equivalent of "overkill" bilateral commitments that would effectively foreclose any U.S. missile defenses not explicitly approved by the Russians.

CENTERFORSECURITYPOLICY: Post-Mortem on the Summit: The Talbott Communique

Unfortunately, its intended purpose is no laughing matter: It is designed to create the international legal equivalent of "overkill" -- bilateral commitments that would effectively foreclose any U.S. missile defenses not explicitly approved by the Russians.

CENTERFORSECURITYPOLICY: Post-Mortem on the Summit: The Talbott Communique