秋天是一年中最美的季节，因为有绚丽多彩的树叶和金灿灿的落叶铺就的“地毯”。新研究指出，今后你看到这一秋日美景的时间要提前了，因为气候变暖将让秋天的树叶提早变色和

　　If we look at the sky on a perfectly fine summer‘s day we shall find that theblue colour is the most pure and intense overhead，and when looking high up in adirection opposite to the sun. Near the horizon it is always less bright，whil

1. Don't overcrowd the shot  Don't try and capture too much in a single image, especially if it's going to be cropped and uploaded to Instagram anyway. Focus on a key area, such as the sheen of an egg yolk or a steak's pink centre, but