But then no one ever said it was easy to be top dog.

不过，没有人说过做到业内顶尖是很容易的。

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Reynolds has never concealed his ambition to be the top dog.

雷纳尔德从不掩饰他要成为领军人物的雄心。

《柯林斯英汉双解大词典》

He quotes, admiringly, Bill Clinton, who once said that America should use its primacy "to create a world in which we will be comfortable living when we are no longer top dog on the global block."

他以钦佩之情引用克林顿所说：“美国应该使用其主导地位来创造一个当我们不再是全球的霸主时，仍旧能生活的舒适的世界。”

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Yorkshire's two big cities, Leeds and Sheffield, vied for more than a century to be top dog.

ECONOMIST: Love in a cold climate

This was a strategy that worked before but it certainly will not work again if Apple wants to be top dog again.

FORBES: Apple's 'Next Big Thing' Will Be an Innovation, Not an Invention

It may be that to be the top dog economically, we may never be the top dog academically.

FORBES: Why It Never Matters That America 'Lags' Other Nations On Global Test Scores