This vast archive has been indexed and made accessible to researchers.这个存量巨大的档案室的所有文件都已编了索引，可供研究人员使用。Ostriches are descendants of dinosaurs, and the researchers liken ostrich movements to those of bipedal dinosaurs.鸵鸟是恐龙...
Several notable researchers are studying the effects of hyperventilation.几位著名的研究人员正在研究通气过度的后果。Researchers need a growing supply of corpses for dissection.研究人员需要更多的供解剖用的尸体。This vast archive has been indexed and made acces...