世界上到处都是愿意帮你制造龙卷风的人，这样你以后就可以声称自己幸存下来了。

The ethical implications of genome editing must be considered alongside the scientific breakthroughs.

The most expensive thing in the world is trust. It can take years to earn and just a matter of seconds to lose.

类比城市是一个类似于另一个城市的城市。