Transactions in Bitcoin could be property, barter, foreign currency, or a financial instrument.
比特币交易可以是财产、以物易物、外币或者金融工具交易。
He taught people how to grow five types of cereals and he formulated barter trade. He was also credited for modifying Fuxi's 35 strings musical instrument into a 5 strings one.
他教人们如何种植五种谷类，创立了的易货贸易，还将伏羲的35弦的乐器改进为5弦乐器。
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