When a mother hen makes a loud noise or crouches down, all her chicks understand this as a warning of danger.

当一只母鸡大声作响或是蜷缩蹲下，小鸡们知道这是有危险的警告。

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If you are an owner of a dog that belongs to a 'dangerous breed' category and you also have a child or a visiting small child please take this as a warning.

如果你是“危险犬种”的犬只主人，而你恰好也有小孩，或者有孩子来你家拜访，那么请千万注意！

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Other areas of agricultural land valuation can be carried out this as a warning, and for agricultural land evaluation system to explore the establishment of a certain significance.

其他地区的农用地定级估价工作可以此为鉴开展，并对于农用地估价体系的建立有一定的探索意义。

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But this reading of the Apology as you might say is a kind of brief for freedom of expression and a warning against the dangers of censorship and persecution.

但阅读《苏格拉底自辩篇》，你可能会说,好似一种对言论自由的概述,还有对审查,及迫害危机的警告。

耶鲁公开课 - 政治哲学导论课程节选

All officials from the chancelleries that he had created and all of the officers were obliged to attend this torture scene as a way of warning them that, "You'd better not mess around."

他所有的内阁大臣和官员们,都被迫出席拷打的场面,这么做是以儆效尤,"你们最好别到处惹是生非"

耶鲁公开课 - 欧洲文明课程节选

This should serve as a warning sign for Romney that he has to be proactive when he returns from his international trip about what he will do to help the economy.

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In France this was taken as a warning to people like Rachida Dati, told to run for the European Parliament after failing as justice minister, that they would be expected to serve their time in the salt mines of Strasbourg and not run home to Paris.

ECONOMIST: European politics

This should serve as a serious warning to Amazon.

FORBES: Amazon Needs a Public Editor