Longevity is one of the greatest treasures any human being can attain. It refers to the body’s ability to live for an extended period, while focusing on much more than lifespan alone. It also includes ...

虽然我们也可以说 “I learned about the Pythagoras theorem today”，但这样表达出来的意思就不是 “我今天学会了勾股定理”，而是 “我今天了解了一些和勾股定理相关的知识”。 Georgie And if you have a question that you'd like us to answer, you can email us too at: ...