我们不妨自己去买原料。 ——the graphite materials are the direct stuff of synthetic diamond. Stuff指东西,材料,原料。例如:i have lots of stuff need to move.material指原材料,实体材料。具体实践到某种事物上的材料,例如:could you tell me this necklace's. 三:典型例句 1、stuff ——we must as well buy our own stuff.