网络上的匿名问题以及有关人员的权利问题，在全球几起法律纠纷后成了热点话题。
The question of anonymity online - and the rights of those involved - is a hot one after a series of legal battles around the world.
儿童青少年肥胖不断增加已成为全球关注的公共卫生问题，针对儿童青少年肥胖进行干预也成为一个热点话题。
Childhood and adolescent obesity has become a growing public health problem of global concern. The intervention of childhood and adolescent obesity has become a hot topic.
近年来，全球粮食价格大幅上涨，引起了国际社会高度关注，粮食问题再次成为热点话题。
Recent years, global grain prices rose sharply, causing great concern of the international community, grain problem once again become a hot topic.
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