单词：upwafted
单词：upwafted 相关文章
This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds k
Scientific American(六)月
幸福就是投入 Under the scorching sun, an old man sat by the bank staring at the buoy on the river. From dawn to dusk he still got nothing in his hands. However, the old man was happy at ease. I felt so puzzled about it. The old man said with a
实用英语
The Little Pear GirlOnce upon a time, a peasant worked hard to make a living from his land. Every year his pear tree produced four basketfuls of fruit which had to be given to the king, a greedy ruler who grew rich at the expense of the poor. One yea
英美文化
Have you the pictures still? I asked. 这些画你还保留着吗？我问。 Yes; I am keeping them till my daughter is of marriageable age, and then I shall sell them. They will be her dot. 是的。我还留着。等我的女儿到了出嫁的年龄
月亮和六便士
Certainly there is no shortage of energy in the world above our heads. One thunderstorm, it has been calculated, can contain an amount of energy equivalent to four days' use of electricity for the whole United States. In the right conditions, storm c
万物简史