Innovation in natural gas extraction is key to meeting the world's growing energy demands while reducing environmental impact.

犯罪并非由贫困引起，而是由人们合法收入与非法收入之间的差距引起。

I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant, and with five I can make him wiggle his trunk.'

好的系统不能具有较弱的命令语言。

我不害怕失败。我害怕不去尝试。