1. 这是个什么词？
词：rivalry
英英释义：competition for the same objective or for superiority in the same field
例句：There has been increasing rivalry between China and the US in military, economy, and technology.
2. 为什么选这个词？
“rivalry”多作不可数名词，意思是“竞争”，可以同义替换 competition。我们之前学过 rival 做动词表示“能与…媲美”“与…匹敌”的用法，可以把 rival 和 rivalry 放在一起来掌握。
中美两国在军事、经济和科技方面的竞争越来越激烈了，我们就可以说：
There has been increasing rivalry between China and the US in military, economy, and technology.
很多互联网公司都在争夺着日活用户第一的宝座，就可以说：
Many Internet companies are engaged in the rivalry over who has the largest number of daily active users.
（be engaged in:参与；从事于；忙于）
Justin 在一篇关于扑克的随笔中也用过 rivalry。由于对决激烈，扑克选手必须得持续审视并调整自己的判断，他是这么写的：
The brutal rivalry enables you to constantly gauge and calibrate your decisions.
残酷的竞争使你能够不断地衡量和校准你的决定。
最新一期《经济学人》Business 板块的 Schumpeter 专栏写的是谷歌和商业伦理，其中两次用到了 rivalry：
The growing strategic rivalry between the two superpowers is putting pressure on American businesses and investors in two ways. During the cold war business was largely untroubled by superpower rivalry because the Soviet Union was an unwelcoming, closed economy.
3. 怎样学会使用这个词？
1）翻译下面的句子：
手机厂商之间激烈的竞争使得智能手机越来越便宜了。
（参考翻译：The intense rivalry among smartphone makers has brought down the prices of gadgets. 或 Thanks to the bitter rivalry among smartphone makers, smartphones have become cheaper.）
2）结合自己的生活、学习、工作、兴趣等，想象在什么语境下会用到这个表达。先简要描述这个场景，再造句。
例子： There has been increasing rivalry between two excellent people in every aspect of life.
场景 ：在生活的各个方面，两个优秀的人之间的竞争越来越激烈。
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