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

A theme is a set of one or more formatting attributes that you can apply as a unit to all activities in an application, or just a single activity.

主题也是一套包含一个或多个格式化属性的整体，但却应用于一个应用程序中的所有Activity，或单独一个Activity。

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Currently, my school is launching an activity whose theme is that actions change the world to advocate the low carbon living.

目前，我的学校正在开展一项活动，其主题是行动改变世界，提倡低碳生活。

youdao

In this context, an activity under the theme "The challenge of media and water as news and communications campaigns" was held.

UNESCO: Programa Hidrol��gico Internacional: Journalis workshop

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

Designs include the name of a prison along with a theme that describes a club or activity synonymous with the correctional institute.

FORBES: Connect