幼虫变为蛹,然後再变成蝴蝶.A larva metamorphose into a chrysalis and then into a butterfly.蝴蝶由蛹孵化而出.The butterfly emerged from the pupa.蛹蛰伏在土壤中，直到冬天它们才蜕变成蛾子飞出来。The pupae remain dormant in the soil until they emerge as adult moths in ...
方法以 4- 溴苯酚为原料,经4步反应制得目标化合物阿达帕林.Methods: The target compound was prepared through a four - step reaction from 4 - bromophenol .使用依尔福溴苯酚显影剂,按1+1稀释,或者依尔福PQ通用 显影液,按1+5稀释.Use either ILFORD BROMOPHEN developer diluted 1 + 1 or...
William Penn wrote in the cool, charitable vein of the Quaker faith.威廉·佩恩以较左派冷静宽仁的特性写作.He told about Mrs. Emily,who was kind and charitable.他讲了艾米莉夫人的事,她既善良又宽厚。Single men, though they may be many times more charitable, be...
Illustration by example is better than explanation in words.用实例说明比用词语解释清楚。This composite illustration was made by putting together a number of drawings.这本综合说明书是集若干图片汇合而成的....a perfect illustration of the way Britain abso...