Poor outcomes are largely related not only to dosage but to a woman's stage of pregnancy at the time of exposure; first and second trimesters are of the most concern.

缺陷在很大程度上不仅取决于照射的剂量还取决于孕妇阶段所受到的照射。 最初的三个月和其后三个月是最重要的阶段。

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While the income-earning side of the equation for postdocs is low, keeping the outgoing expenses equally low should be the primary concern at this stage in a career.

尽管博后收入不高，维持一个相当的消费支出才是这个事业阶段的主要考虑。

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The planning and construction of power network have entered a stage of rapid development and caused increasing concern.

电网规划及建设在近年已进入了高峰期，并得到了越来越多的重视与关注。

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That sort of repetitive stress is a real concern for all stage actors, along with moving well and making it all look effortless.

FORBES: Bright Lights, Big Fitness: The Business Of Keeping Broadway In Shape

The Milk Cup is now a truly global concern and only the cream of young footballers take the stage.

BBC: SPORT | Football | Irish | Only the cream for Milk Cup

But in this latest stage of the conflict, it is the response of the police that is causing the greatest concern.

BBC: Sao Paulo police at war with prison gang