香港

Xiāng gǎng Hong Kong

加密货币

jiā mì huò bì cryptocurrency (e.g. bitcoin)

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：（@hkotcccWMmU