By an unlimited quantity is of course not meant literally,but practically unlimited: a quantity beyond the use which can in any,or at least in present circumstances,be made of it.

• 所谓数量无限，当然不能从字面上去理解，而是指实际上是无限的，即数量超过了在任何情况下或至少在目前情况下所能利用的程度。