比特币

bǐ tè bì bitcoin (virtual currency)

快速

kuài sù fast; high-speed; rapid

兑换

duì huàn to convert; to exchange

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]

TG:@shede888acem