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

The more sustaining advantages in business today are in the category of soft stuff.

FORBES: The Hard and Soft Stuff of Business: Winners Excel in Both

They excel in both the hard stuff and the soft stuff of business.

FORBES: The Hard and Soft Stuff of Business: Winners Excel in Both

Given how thickly trafficked this corridor of English literary history has been in recent years, a writer like Hollinghurst can spin yards of this soft stuff practically in his sleep.

NEWYORKER: Sons and Lovers