夏天到了,在池塘边,草地上,人们经常能见到蜻蜓。蜻蜓的色泽多种多样,有红色、黄色、黑色、草绿色等。蜻蜓是一种善飞的昆虫,它长着两对透明轻柔的翅膀,平行伸展在脊背上,很像一架飞机。它能低飞于水面,又能在空中滑翔,飞行速度为每小时50～70公里。它的远程飞行更惊人。听说有 When summer is over, people often see dragonflies near ponds and grasslands. Dragonflies of a variety of colors, red, yellow, black, grass green and so on. Dragonfly is a good fly insects, it has two pairs of transparent and gentle wings, parallel to the back of the spine, much like a plane. It can fly low on the water, but also gliding in the air, the speed of 50 to 70 kilometers per hour. Its long-range flight is more astonishing. I heard that there is