Earth can probably only carry one billion humans. As long as human populations continue growing, the battle [to save the planet] will be lost.

地球大概只能给养十亿人，如果人口继续增长，(拯救地球的)战斗就会失败。

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The upcoming demonic invasion seems to them to be a good moment to test the motivations of all nations, as they unite in a battle to save the world.

而即将到来的恶魔入侵似乎是一个测试所有种族的好机会，检验他们能否联合起来拯救世界。

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Director James Cameron takes audiences to a spectacular world beyond imagination, where a reluctant hero embarks on a journey of redemption and discovery as he leads a heroic battle to save a civilization.

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That, plus the open row between Silvio Berlusconi and Giulio Tremonti, his finance minister - oh, and big demonstrations against austerity - have opened up Italy as a new front in the battle to save the Euro.

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