Eugenics has a biological significance.优生学具有生物学上的意义.A distinction is often made between " positive " and " negative " eugenics.对 “ 积极 ” 优生学和 “ 消极 ” 优生学往往加以区分.An example of negative eugenics would be the attempt to eradic...
But constructionism itself, it also has some defects, the curriculum implementer should know this clearly.同时,建构主义自身也有不足之处, 课程的实施者对此要有清醒的认识.Characteristic defects are of two main types; regression and syneresis.特征缺陷主要有两类:...
Large oak trees overshadow the garden.高大的栎树把花园遮得很暗.Her new book will overshadow all her earlier ones.她的新书将会使她以前写的书都黯然失色.Fears for the President's safety could overshadow his peace-making mission.对总统安全的担忧可能会给他的调解使命蒙上...