生命是一种通过性传播的致命疾病。
Oil and gas will remain part of the energy mix for decades to come, but we must produce them as cleanly as possible.
We often think of poverty as a lack of money, but it’s also a lack of information and opportunities.
我们常常认为贫穷是缺钱，但它也是缺乏信息和机会。
A healthy animal is the foundation of a healthy food chain.
软件的复杂性是一个本质属性，而不是偶然的。