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But this credibility is not theirs to sell .

可这并不是它们可以出售信誉。

But such occasions are only theirs to lose .

但这样的赛事上如果有输家的话也只能是它们。

Theirs is a risky , two-part strategy .

它们采取的是一个具有风险的两步策略。

Instead , china in common with the world 's other developing countries is only being required to curb the future growth of its emissions , while rich countries ensure that theirs fall below 1990 levels .

相反，它们只要求中国与世界其它发展中国家一样遏制未来排放量的增长，而富裕国家要保证自身排放量低于1990年的水平。

" China has already surpassed the other golden brick countries and its potential is still far greater than theirs , " said zhang rui , 32 , an it technician .

32岁的it人士张锐（音译）表示：“中国已超越了其它金砖国家，而且潜力也比它们大得多。”