优生学具有生物学上的意义.Eugenics has a biological significance.对 “ 积极 ” 优生学和 “ 消极 ” 优生学往往加以区分.A distinction is often made between " positive " and " negative " eugenics.消极优生学的范例是试图破坏一种对人体有害的隐性基因.An example of negative eugenics woul...
广场上灯火辉煌,如同白昼.The public square is as brightly lit as in daylight.灯火辉煌,犹如白昼.The place was lit up as bright as day.曙光是白昼的先驱.Dawn is the herald of day....
The gas contains blow - by, sludge, acids, oil, and other contaminant.这些气体包括窜缸气体, 沉积物, 酸, 机油和其它杂质的气体.Modification of rinsing techniques by installing cascading or counter - current rinse systems increases the contaminant...
他的作品简洁明晰，文风典雅。His writings were marked by an extraordinary lucidity and elegance of style.艾丽斯·芒罗以文风沉郁闻名。Alice Munro has a reputation for being a very depressing writer.华丽的文风an aureate style of writing...
His hair is dark grey with flecks of ginger.他深灰色的头发夹杂着几缕姜黄色。His hair was dark, with flecks of grey.他的黑发间有缕缕银丝。He went to the men's room to wash flecks of blood from his shirt...他去男洗手间清洗衬衫上的斑斑血迹。I got a few flecks of...
It faints me to think what follows.一想到即将到来的事就使我失去勇气.A few faints gleam of sunshine lit up the gloomy afternoon.有几束隐约的阳光使阴暗的下午有些明亮.She faints at the sight of blood.她一看到血就会昏过去....