1. 這是個什么詞？
詞：rivalry
英英釋義：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. 為什么選這個詞？
“rivalry”多作不可數名詞，意思是“競爭”，可以同義替換 competition。我們之前學過 rival 做動詞表示“能與…媲美”“與…匹敵”的用法，可以把 rival 和 rivalry 放在一起來掌握。
中美兩國在軍事、經濟和科技方面的競爭越來越激烈了，我們就可以說：
There has been increasing rivalry between China and the US in military, economy, and technology.
很多互聯網公司都在爭奪著日活用戶第一的寶座，就可以說：
Many Internet companies are engaged in the rivalry over who has the largest number of daily active users.
Justin 在一篇關于撲克的隨筆中也用過 rivalry。由于對決激烈，撲克選手必須得持續審視并調整自己的判斷，他是這么寫的：
The brutal rivalry enables you to constantly gauge and calibrate your decisions.
最新一期《經濟學人》Business 板塊的 Schumpeter 專欄寫的是谷歌和商業倫理，其中兩次用到了 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. 怎樣學會使用這個詞？
1）翻譯下面的句子：
手機廠商之間激烈的競爭使得智能手機越來越便宜了。
（參考翻譯：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）結合自己的生活、學習、工作、興趣等，想象在什么語境下會用到這個表達。先簡要描述這個場景，再造句。
例子：
場景 ： The brutal rivalry enables people to constantly gauge and calibrate their decisions.
