他的葫芦里到底卖的是什么药？

What has he got up in his sleeve?

《新英汉大辞典》

这让他们的对手始终摸不透其葫芦里卖的是什么药，也使得制定对朝政策变得益发困难。

This keeps their adversaries guessing and it makes it more difficult to formulate policy.

youdao

老师葫芦里到底卖的什么药？

The teacher got up its sleeve in the end what medicine to sell?

youdao