Philosophy is hard stuff to read.

哲学是很难读懂的东西。

youdao

Skip the hard stuff.

跳过困难的地方。

youdao

Changing ourselves, changing our behavior - this is hard stuff.

改变自己，改变我们的行为-这是困难的事情。

youdao

I'm the heterogeneous system, soft stuff, hard stuff, liquid stuff.

我是非均匀系统，有软的物质，硬的物质，液体物质等。

麻省理工公开课 - 热力学与动力学课程节选

It's hard to write a lot of stuff in a language that you're not as familiar with,

用你不熟悉的语言写论文真的很难，

选择国际学的理由 - SpeakingMax英语口语达人

Philosophy is hard stuff to read.

哲学是很难读懂的东西。

耶鲁公开课 - 死亡课程节选

And you just mentioned, let's do the fun stuff before we do the hard stuff.

WHITEHOUSE: President Obama Holds a Town Hall in New Hampshire

The Victorians loved highland scenery, and this was the hard stuff: Scotland turned up to 11.

BBC: Finding 'friluftsliv' in Norway

But it is also true that what remains is hard stuff -- entitlement reform and tax reform.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,