Because obesity is a complex condition affected by genes, chemicals, behavior, and the environment, explaining it will likely require a comprehensive approach.

肥胖是由基因，化学物质，行为和环境共同影响的复杂态，想要解释它需要一个综合的，全面的途径。

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The successful practice can become certain reference and guidance for the construction of deep foundation pit under complex condition at central area of the city.

工程的成功实践对在城市中心区域、复杂条件下的深基坑施工具有一定的借鉴和指导作用。

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When submarine pipelines are subject to complex condition loads, it is indispensable to analyze their dynamic response and reliability.

当海底管线受到复杂的环境载荷作用时，有必要对其动力响应和可靠性进行分析。

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Another senior defense official, who spoke on condition of anonymity, said last week that any change in the complex series of agreements could unravel the entire plan, which was 15 years in the making.

VOA: standard.2009.10.18

Private Health is designed to backfill these gaps whenever one of its patients has a medical emergency or complex condition, say, a traumatic brain injury or newly diagnosed cancer.

WSJ: The Weekend Interview with Leslie Michelson: Doctor to the 1% (and Maybe Someday to You)

Ban called for the professional community and society as a whole to become more involved, compassionate and accepting of this complex condition and stressed the importance of early intervention for every child in the world who lives with autism.

CNN: Autism efforts go global at U.N. forum

Tiffany White, from Gloucester, said there were poor hygiene standards at the hospital shortly before her son Oscar Wilcox died from a complex cardiac condition.

BBC: Rachael Puaca and Christopher Casey