or fear on the down side
"最小公倍数几何成长",non liner, mkt catches fire
回答: (私有制乐器上奏出的单音)律音的相互作用有两种方式:产生一个更低的律音,它的谐音频率就是各律音的频率,[color=red]该律
由 marketreflections
于 2010-10-25 12:49:45
or fear on the down side
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