China made that promise as part of efforts to gain the upper hand in global climate-change negotiations.

中国的这一承诺在一定程度上是为了努力在全球气候变化谈判中占据上风。

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Help Arceus take advantage of the various strengths and weakness among the types to gain the upper hand in battle!

帮助阿尔修斯利用不同的优势和弱点属性，在战斗中获得主动权吧！

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"We're in the middle of a terrible crisis where patients are missing their treatment, and the disease will gain the upper hand," said the Rev.

“我们正处于严重的危机之中，患者正失去治疗，疾病将会再次抬头。”Caribbean Youth House的主任Rev。

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Henman never looked back, breaking in the sixth game of the second set to again gain the upper hand.

BBC: Henman eases through

If Europe is divided, those who have an ultra-free market concept of Europe would gain the upper hand.

BBC: Chirac's EU treaty plea: Excerpts

Both sides battled to gain the upper hand in the second-half, with a total of six players booked.

BBC: Gravesend 0-0 Farnborough