有时我们为某些事感到悲伤，却不愿告诉别人。我们想保守这个秘密。或者有时我们感到悲伤，却真的不知道为什么悲伤，于是我们说我们不悲伤，但实际上我们是悲伤的。
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.
The key to successful investing is to have a diversified portfolio.
The Black Eyed Peas is a movement, not just a group.
技术可以帮助我们监测森林，但智慧教会我们如何保护它们。
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。