Some birds are not close, because they are too bright.

天然气作为清洁能源，将在我国能源结构调整中发挥重要作用。

The world is full of signs, and the writer's job is to decipher them.

No matter how good you get you can always get better, and that's the exciting part.

The measure of success is not just in yields, but in lives improved.

If you want to stand out, you have to be willing to be different.