Duckdata is a bibliographical database of North American waterfowl Anatidae and their wetlands habitats.水禽数据库是有关北美水禽和它们的湿地栖息地的书目数据库.Facies of species are often connected with extreme or disturbed habitats.植物种的群常与严酷或干扰的生境...
...the introduction of legislation to compel cyclists to wear a helmet...强制骑自行车者戴头盔的法律的出台The arguments are founded on facts and compel conviction.这些论点以事实为根据,令人不得不信服.Do you think you can compel obedience from me?你以为你能逼我服从...