Therefore, it is imperative to enhance inter national cooperation and make a joint effort to work out an international anti-monopoly law in order to protect the world order of market competition.

因此，各国必须加强国际反垄断合作，尽快制订国际反垄断法，以维护国际经济竞争秩序。

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The Commission said some of the firm's "inter-bank fees and related practices may be anti-competitive".

BBC: EU investigation to probe Mastercard fees