虚拟

xū nǐ to imagine; to make up; fictitious; theoretical; hypothetical; (computing) to emulate; virtual

币

bì money; coins; currency; silk

互换

hù huàn to exchange

唯一

wéi yī only; sole

联系

lián xì connection; contact; relation; to get in touch with; to integrate; to link; to touch

lián xì variant of 聯繫|联系[lian2 xi4]

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