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Get more steem votes is explained following the link and coinbase is a platform you can send fiat money to where you can trade it for bitcoin, litecoin or etherium... in case you want to buy steem or other currencies

Now understood, thanks

Coin Marketplace

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TRX 0.16
JST 0.028
BTC 74877.97
ETH 2797.38
USDT 1.00
SBD 2.54