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Opponents worry that such expansion would be costly for taxpayers, but advocates say it would save money in the long run.

反对者担心这样的扩张会让纳税人付出高昂的代价，但支持者说，从长远来看，这种扩张可以节省资金。

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The big worry, say critics, is who might get to make use of this information.

批评者表示最大的担心是谁会可能利用这些信息。

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But other doctors say they worry that the changes will reduce testing and lead to more women dying from breast cancer.

VOA: special.2009.11.18

Well if I-- you know, with let me say it differently. I don't need to worry about how checking is done, it's handled inside of that function.

好，如果你们知道，抱歉，让我们换种说法,我不必担心检查工作,是则会么做的，这是在方法体内部进行的。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's like, "No, don't worry about that. Just say it."

这就像，“不，别害怕这个。直接说出来。”

紧张是学英语的敌人 - SpeakingMax英语口语达人

Authorities say they worry the hole is still spreading and the house could collapse at any time.

CNN: A loud crash, then nothing: Sinkhole swallows Florida man

Doctors say they worry the two flu strains (H1N1 and seasonal) could combine, further complicating the situation.

CNN: Cold? Flu? H1N1? How can you tell the difference?

Researchers who hope for a successful, HDL-raising drug now say they worry pharmaceutical companies may not revisit the approach.

WSJ: New Rules for Boosting Good Cholesterol