They worry that high interest rates are keeping the dollar too high.

他们担心高利率会使美元比值过高。

《柯林斯英汉双解大词典》

They worry about the fat and calorie content.

他们担心脂肪和卡路里含量。

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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

most chemical and biological systems aren't that simple precisely because you have to worry about many particles and their statistics and the way they might order or disorder.

大多数化学或者生物系统并不是这么简单,因为你必须担心大量的粒子,和他们的统计特性以及它们有序,和无序的情况。

麻省理工公开课 - 热力学与动力学课程节选

Firms in perfect competition are price takers: they don't particularly have to worry about the actions of their competitors.

这些企业是价格接受者,他们不必担心,他们的竞争对手的策略

耶鲁公开课 - 博弈论课程节选

Congress is afraid of their boss. (We, the people.) They worry about getting fired.

FORBES: Congress Motivated By Fear, Incompetence... Just Like Big Business!

So they see them, they worry about them, they worry about all kinds of things.

NPR: How The Syria Debate Is Playing Out In The Middle East

They worry that introducing top-up fees would scare off potential students from poor families.

ECONOMIST: The battle-lines over university fees have been drawn