There will be an opera on the air this evening.

That radio show is still on the air.

那个广播剧还在播送.

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We shall be on the air in 5 minutes.

过五分钟我们开始广播.

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She is singing on the air.

她正在广播歌曲.

《简明英汉词典》

When the show went on the air , it was the hit of the season.

那个节目播出后, 成了该年度的最佳节目.

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There, the moisture is either deposited on the air-filter element, restricting its flow.

这时, 湿气会附在空气滤清器上, 而限制了它的流动.

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She didn't know she was on the air when she said those crazy things.

当她说那些疯狂事的时候,她不知道已经在广播了.

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The oven operates on the air-bath principle.

恒温槽工作基于空气浴原理.

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Troops are on the alert against any possible aggression.

军队戒备着可能的来犯.

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Police are warning the public be on the alert for suspicious packages.

警方警告公众要警惕可疑包裹.

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They did their best to keep on their guard [ on the alert ] .

他们尽量保持 警惕.

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Knowing that danger threatened , the sentry was on the alert.

因为知道危险势将发生, 这哨兵加意戒备.

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These are the Chinese need to be on the alert.

这些都是需要中方警惕的.

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Her fears had always been on the alert for an upheaval.

她日夜提心吊胆,严防突变.

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The policemen were on the alert for an excaped convict.

一名逃脱犯令警方全面警戒.

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They must be constantly on the alert for the enemy.

他们必须随时注意敌人.

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The sentries were all on the alert.

哨兵们都警戒着.

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He drew this conclusion on the analogy of yours.

他根据你的理论类推得出这个结论.

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These are on the average better educated than those in the marketplace.

一般来说,这些年轻人比那些在市场上工作的人受教育的程度高一些.

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On the average, the speed of the development of of urbanization is depended of the economy.

一般来说, 城市化的发展速度取决于经济发展速度,经济发展速度越快,城市化速度越快.

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A parallel-inverter system based on the average current control scheme is studied in this paper.

研究了基于平均电流控制的逆变器并联系统.

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