The bright plumage of many male birds has evolved to attract females.很多雄鸟进化出鲜艳的羽毛是为了吸引雌鸟。Its body plumage suddenly began to ruffle and swell.它全身的羽毛突然竖了起来，胀得鼓鼓的。The birds were in immature plumage.这些鸟儿羽翅未全。...
Ambiguity is a quality of much fine writing, endowing it with richness, subtlety, or surprise.晦涩是许多优秀作品的特点, 这赋予它们以意味深长, 深奥微妙或语出惊人之感.Prisoners sometimes ease their captivity by endowing their jailers with extraordinary qu...
1875年,来自东部的拓荒者在这个地区定居下来.Pioneers from the East settled in this region in 1875.约翰. 肯尼迪为新拓荒者精神的典型人物.John F . Kennedy typified the new frontier spirit.《拓荒者》引出了库珀笔下最有名的两个人物.The Pioneers introduced Coopers two best - known cr...