a person, group, etc. competing with others for the same thing or in the same area

He beat his closest/nearest rival by 20 marks. 他以领先20分的成绩打败了和他水平最接近的对手。

The companies produce rival versions of the toy. 这些公司生产的玩具跟我们的产品争夺市场。

to be as good, clever, beautiful, etc. as someone or something else

No computer can rival a human brain for/in complexity. 没有任何计算机比得上人脑复杂。

The beauty of the country is only rivalled by (= is as great in degree as) the violence of its politics. 该国的美丽风光非同寻常，而其国内政治的残暴同样惊世骇俗。