We are probably all familiar with background music in films, which has become so ubiquitous as to be noticeable in its absence.

我们可能都熟悉电影中的背景音乐，它已经变得如此普遍，以至于如果没有背景音乐便会显得很突兀。

youdao

In the absence of evidence to the contrary, the profession of faith should be enough.

在缺少反面证据的情况下，对于信仰的声明应该足够了。

youdao

In the absence of actual data no reliance can be placed on such figures.

在缺乏实际资料的情况下，这样的数据不可靠。

《新英汉大辞典》

This was the first Summit of the Americas to be held in a Caribbean nation, and was notable for a virtual absence of protesters.

VOA: standard.2009.04.19

Some members of the U.S.Olympic Committee have indicated Mr.Obama's absence in Copenhagen would be noticed, and could have an impact on the decision making process.

VOA: standard.2009.09.16

They say they do not think Iran will engage seriously in the absence of what would be a fourth round of sanctions by the U.N.Security Council.

VOA: standard.2010.05.14

Our presence may be encouraging regimes to engage in behaviour that would be unthinkable in our absence.

ECONOMIST: The aftermath of terror

Measuring the effectiveness of these tools is hard, since nobody can know what the exchange rate would be in their absence.

ECONOMIST: Latin America's economies: Waging the currency war | The

And he cannot know how what he leaves behind will be used in his absence.

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