Reducing demand has proven difficult.
事实证明，降低需求非常困难。
Reducing demand has been difficult.
事实证明，降低需求非常困难。
Or might it be better to focus on reducing demand?
还是侧重于削减需求会更好些？
Such offerings may also succeed in reducing the demand for pirated music.
这种服务的提供也可以使盗版音乐需求下降。
Generally speaking, price can be brought down by increasing supply or reducing demand.
一般地说，通过增加供给或减少需求可以降低物价。
Generally speaking, price can be brought down by increasing supply or reducing demand.
一般地说，通过增加供给或减少需求可以降低物价。
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