With the development of urban construction in recene years, more and more skyscrapers have been set up unceasingly.
随着近年来城市建设的发展,越来越多的摩天大楼不断建起。
A bad padlock invites a picklock.
开门揖盗。
Professor Karl von Frisch, an Austrian scientist, spent many years of his life researching the amazing ways honey bees communicate in their dark hives.