You should do sport to keep young.

为了保住青春，你应该做运动。

youdao

People wanted careers. They wanted doctors, nursing homes and decent schools that would keep young families from moving to the big cities, leaving only the old behind (see article).

民众需要的是事业，他们需要医生，疗养院以及良好的教育机会，年轻的家庭不必为此迁移到大城市，只留下老一辈人。

youdao

Dr. Preston acknowledges that the United States might do more to keep young and middle-aged people from getting sick, but he says it’s not clear that other countries’ systems are more effective.

普雷斯顿博士也承认，美国应该更重视维护年轻人和中年人的健康，降低他们染病的可能，不过他不认为，其他国家在这方面就一定做得更好。

youdao

Special efforts are being made to keep young families.

VOA: special.2009.07.13

That at least will keep him young.

至少可以让他不老。

耶鲁公开课 - 旧约导论课程节选

In cold weather, many of these young volunteer firefighters wore coats made of the skin of buffalo to keep them warm and dry.

VOA: special.2009.05.17

Insecurity and fear associated with sexual violence keep young girls, in particular, out of school.

UNESCO: Conflict is robbing 28 million children of a future, UNESCO report warns | United Nations Educational, Scientific and Cultural Organization

In February, Hasbro offered to add a plastic grate to keep young fingers out of the oven.

NPR: Burns Prompt Another Toy-Oven Recall

Its early success was to use small grants to keep young scientists from abandoning their research on the disease.

FORBES: Patient Power