非经背书转让，而以其他合法方式取得汇票的，依法举证，证明其汇票权利。
A person who acquires a bill of exchange by lawful means other than endorsement shall provide evidence according to law to prove his rights thereon.
按照记名人指示付款之汇票，凭执票人背书后交付而构成流通转让。
A bill payable to order is negotiated by the indorsement of the holder completed by delivery.
将汇票金额的一部分转让的背书或者将汇票金额分别转让给二人以上的背书无效。
The endorsement which transfers part or all the amount on the draft to two or more persons is invalid.
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