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。
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。
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。
And they warn that serious complications may ensue.
他们警告说术后可能发生严重的并发症。
And, they warn, the holiday season may make it worse.
探员们还警告说，这种情况可能随着假日的到来而更加严重。
Sometimes they warn each other of danger, and they also communicate simply to keep in touch.
于是它们互相提醒危险，它们交流仅仅是为了保持联系。
The Los Angeles blaze is still largely out of control. Firefighters say they are making progress, but they warn that it might not be contained for another two weeks.
洛杉矶大火很大程度上仍处于失控状态。消防部门说，灭火工作已取得进展，但是大火被全部扑灭至少还需要两个星期。
While officials are drawing comfort from stable rice prices, key for feeding Asia, they warn that a sustained period of high prices, especially in grains such as wheat, would hit poorer countries.
虽然作为亚洲主食的大米价格保持稳定让官员们略感放心，但他们警告，粮价尤其是小麦之类的谷物长时间处于高位，将对较贫穷国家造成冲击。
They warn people against destroying trees.
他们警告人们不要破坏树木。
They warn predators that these frogs are poisonous.
这种颜色可以警告猎食者：“我是有毒的！”
They warn that only tough action can save the elephants from extinction.
他们警告说，要拯救大象，只能用强硬手段。
They warn that the lack of sleep is having a serious knock-on effect on our health.
他们警告说，睡眠不足会给我们的健康带来严重的连锁反应。
They warn that in some countries, infection rates were falling but are now rising again.
感染率在一些国家曾一度下降，但是现在又再度上升。
They warn that children already spend too much time in front of TVs, DVD players and computers.
他们警告说孩子们已经在电视、DVD、和电脑前花了太多时间。
They warn that a so-called "double-dip," if it comes, could be more painful for average Americans than the 2007-2008recession.
他们警告说，假如所谓的“双重下滑”真的到来，那将比2007 - 2008年的经济衰退更使普通美国人感到痛苦。
They warn that heavy dependence on microblogs can lead to mental problems like anxiety disorder or obsessive compulsive disorder.
他们警告称，对微博高度依赖可能导致像焦虑症或强迫症这样的精神问题。
They warn that trying to invent our way out of trouble is a way of avoiding the changes to our way of life that are really required.
他们警告说，努力发明让我们摆脱困境的方法，就是在逃避改变我们真正需要（改变）的生活方式。
They warn that businesses will suffer if they stay in a Britain that no longer has unfettered access to the EU and its hundreds of millions of potential customers.
他们警告说，如果留守不再拥有无条件进入欧盟市场、接触其亿万潜在消费者资格的英国，企业的日子会很不好过。
They warn people, for example, against chewing gum, littering, eating or drinking in a bus or train, damaging flowers, trees or other plants, spitting, and leaving the toilet unflushed after using it.
提醒人们不能吃香口胶、不可乱丢垃圾、不得在公共汽车和地铁车厢里吃东西、不可随意摘花草树木、不能随地吐痰、上厕所不忘抽水等等。
They warn people, for example, against chewing gum, littering, eating or drinking in a bus or train, damaging flowers, trees or other plants, spitting, and leaving the toilet unflushed after using it.
提醒人们不能吃香口胶、不可乱丢垃圾、不得在公共汽车和地铁车厢里吃东西、不可随意摘花草树木、不能随地吐痰、上厕所不忘抽水等等。
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