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Becoming obsessed with efficiency can make us cowardly .

沉迷于效率会让我们变得懦弱。

So we enter a cowardly new world .

我们进入了一个怯懦的新世界。

Eg. I 'm cowardly about things that remind me of myself .

我对那些使我回忆起往事的东西总感到胆怯。

In his stories , there is a certain species of alien that is profoundly cowardly and tries to reduce the danger of its environment .

在他的故事里，有一个外星种族，他们非常非常胆小，竭力想寻找一种能够降低环境危险的方法。

This is both masochistic and cowardly .

这既是自讨苦吃又是懦弱的行为。