First of all, developed nations should make explicit commitment on the emission reduction targets of the second commitment period of the Kyoto Protocol and make progress in that respect.
首先，发达国家应该就其对于《京都议定书》第二承诺期的减排指标作出明确承诺，取得积极进展。
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The talks began on Tuesday with poor nations demanding that rich ones agree to a second round of legally binding greenhouse gas emission reduction commitments under an updated Kyoto Protocol.