The Internet is a powerful tool for education, but it is not a substitute for the teacher.

OPEC no longer holds all the cards in global oil markets.

Never compromise on safety - it's the cornerstone of our industry.

"Escribir es un acto de libertad, una forma de resistir contra la opresión y el olvido."

算法的美在于它们能够解决乍一看似乎无法解决的问题。

有的人忙着死，有的则人忙着活。

Will you guard your heart against rejection， or will you act when you fall in love？