It's good you can see the funny side of the situation.
你能看到情况可笑的一面，这很好。
It's not funny! Someone could have been hurt.
这没什么好玩的！可能有人会受到伤害。
I suspect there may be something funny going on.
我怀疑可能有某种非法勾当在进行中。
The engine's making a very funny noise.
发动机发出一种很怪的`声音。
If there has been any funny business, we'll soon find out.
如果有任何非法的事，我们会很快发现的。