One in five young adults was struggling with everyday mathematics.

每5个年轻人中就有1个做日常的数学计算很费劲。

《柯林斯英汉双解大词典》

The overall share of young adults living with their parents was not at a record high in 2014.

2014年，与父母同住的青年总体比例没有达到历史最高水平。

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Play allows a young animal to explore its environment and practice skill in comparative safety since the surrounding adults generally do not expect the young to deal with threats or predators.

玩耍可以让一只小动物探索环境并在相对安全的环境中练习技能，因为周围的成年动物通常不期望幼崽应对威胁或捕食者。

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The Seoul government has recently consolidated several agencies to train young adults to do volunteer work in developing countries.

VOA: standard.2009.11.05

And I think it shocked me when I was in that room was that there were all kinds of adults setting there around the table talking about young people, the relationship to technology the relationship to culture the relationship to schooling and to each other.

在现场有一件事令我感到震惊,我们一群成年人来参加听证会,围桌讨论各种关于年轻人的问题，讨论年轻人与技术的关系,与文化的关系,与教育的关系以及年轻人之间的相互关系。

麻省理工公开课 - 媒体、教育、市场课程节选

"In a single generation, we've fallen from first place to twelfth place in college graduation rates for young adults.

VOA: special.2010.08.12

As in many other countries, the death rates were highest in young adults under age 45, with one in 10 obesity-related deaths associated with sugary beverages.

CNN: Sugary drinks linked to 180,000 deaths worldwide

It examined data collected in the Coronary Artery Risk Development in Young Adults cohort study, which followed more than 2, 000 young adults for 20 years.

CNN: New parent? Watch the saturated fat

But a presidential commission says the government would have to take multiple steps including more safety research in young adults before it would be ethical to consider tests in children.

NPR: Panel: Thumbs Down On Anthrax Vaccine Test In Kids