每一个词都是通向理解的一步。
Every word is a step towards understanding.
The system produces needs faster than it can satisfy them, and thus it perpetuates itself.
"A good film is one that leaves the audience with more questions than answers."
天然气开采的创新是满足世界日益增长的能源需求同时减少环境影响的关键。
The past is a kind of future that has already happened.