这一点是指其身体上的发光斑或发光点.This may show as luminescent blotches or spots on the body.我们将它称为光束的 “ 光斑尺寸 ”.We will consequently refer to it as the beam'spot size ".如果孔是圆形的, 那么在屏幕上出现一圆形光斑.If the aperture is circular, a circular...
People with high blood pressure are especially vulnerable to diabetes...有高血压的人尤其易患糖尿病。Old people are particularly vulnerable members of our society.老年人是社会中尤为明显的弱势群体。Community groups have expressed fears that criminals wi...
“没错，梅格。”他用冰冷、阴沉的声音答道。"That is correct, Meg," he answered in his cold, dead voice.黎明时分天气阴沉，云幕低垂。The day dawned sunless and with a low cloud base.他猛灌着双份威士忌，脸色阴沉。He was drinking his double whiskey too fast and scowling....
Earthworms consume large amounts of soil, and produce a rich humus, perfect in texture.蚯蚓吃下大量土壤，排出肥力丰富、物理结构理想的腐殖质。The lack of humus and the excessive leaching make this soil almost useless for agricultural purpose.缺少腐殖质和...