Are cameras allowed here
是否可以拍照

Excuse me. Are cameras allowed here?
打扰一下，这里可以照相吗？
Sorry, sir. In order to protect these paintings, taking photos are strictly forbidden here.
抱歉，先生，为了保护这些画，这里严禁拍照。

I see. What a pity. I have to appreciate it carefully.
知道了，太遗憾了。我不得不好好欣赏这张画了。
I am really sorry for that.
我为此感到抱歉。