The theme of World Heart Day, "How Young is Your Heart" addresses prevention of cardiovascular diseases by controlling three major risk factors: diet, physical activity and tobacco use.

世界心脏日的主题“你的心脏有多年轻”，致力于通过控制三大危险因素饮食、身体活动和烟草使用来预防心血管疾病。

youdao

Theme class meeting is a kind of collective education activity and it is an important way of education for the deaf.

主题班会活动是实施德育的重要载体，提高对主题班会教育作用的认识，有利于建设班集体。

youdao

Members can accept club invitation to attend all kinds of theme club activity: E. g. leisure travel, dinner, etc.

会员可接受俱乐部邀请，参加俱乐部组织的各类主题式活动：如休闲旅游、聚餐等。

youdao

"There is an underlying theme throughout the plan - partnership, pro-activity, prevention, " Mr Macpherson said.

BBC: Wiltshire policing plan focuses on safer neighbourhoods

The project has been carried out during the 2008-2009 and 2009-2010 school years and was aimed at all teachers open to participating in a creative activity on the theme of water and science with their Primary or early Secondary school classes.

UNESCO: Natural Sciences