“这可不是闹着玩的！”用英语怎么表达？

这可不是闹着玩的！03:12来自线话英语
No laughing matter
正经事
不是儿戏
不是闹着玩的
A very serious topic or situation.
非常严肃的话题或情况。

laughing
adj. 可笑的
matter
n. 事态
serious
adj. 严重的
situation
n. 情况；形势
Trying to find a place to live at the moment is no laughing matter.
此刻，找个地方住才是正经事。

at the moment
此刻；当时
Boys, this is no laughing matter. One of you could have been seriously hurt.
孩子们，这可不是闹着玩的。你们其中一人可能会被重伤。