他是个闷葫芦。

He's a very private person.

被包藏在一个闷葫芦里面的神秘物体之中的谜。

Russia is a riddle wrapped in a mystery inside an enigma.

这就成了锻炼那些大姑娘想象力的闷葫芦，例如：“啊！鼓多美哟！”

This created enigmas which exercised the imaginations of the big girls, such as: Ah, how delightful is the drum!

这孩子把积攒下来的零用钱都放在闷葫芦罐儿里了。

The child put his collected pocket money in an earthenware money box.

俄罗斯是被包藏在一个闷葫芦里面的神秘物体之中的谜。

Russia is a riddle wrap in a mystery inside an enigma.