While the increase in tiger Numbers is good news, say environmentalists, they warn India cannot get complacent.

在老虎数量增长这一好消息面前，环保人士仍然警告印度不可自满。

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But they warn that the economic recovery remains fragile and will not be led by the world's advanced industrialized nations.

但是，他们警告说，经济复苏仍然脆弱，而且不会由发达工业化国家引领。

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Critics have called these Banks the "derivatives dealers club," and they warn that the club is unlikely to give up ground easily.

批评者管这些银行叫做“衍生品交易员俱乐部”，他们警告说，这个俱乐部不会轻易放弃地盘。

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But,they warn that persons with weakened defenses for fighting disease are at greater risk.

VOA: special.2009.10.13

They warn us of dangerous trends. They point out potent evils.

他们为我们警告对危险倾向，指出潜在的邪恶。

耶鲁公开课 - 1945年后的美国小说课程节选

Firefighters say they are making progress, but they warn that it might not be contained for another two week.

VOA: standard.2009.09.01

But they warn against phoney sincerity, and (perhaps surprisingly) they advocate displays of weakness.

ECONOMIST: The genuine article

They warn that they won't make such loans because they carry increased legal risk.

WSJ: Prebuilt Loan Predicament

And as for the Polisario, they warn that this refurbishment deal comes at a dangerous time.

BBC: News Online