Lead was one of the metals known to the ancient world.铅是早在古代就已知的金属之一。Metals expand when they are heated.金属受热会膨胀。What spurred them on was alchemy, the'science " of changing ordinary metals into gold.激励他们的是炼金术, 即把普通金属...
The commonplace is just that light , impalpable, aerial essence.平凡才是一种要素,轻盈 、 无形、难以捉摸.The characters become impalpable.人物真难以捉摸.The impalpable power of faith.信仰的玄妙力量....
同型丝氨酸也牵涉到蛋氨酸的生物合成.Homoserine has also been implicated in the biosynthesis of methionine.甘氨酸去除二氧化碳和氨能产生丝氨酸.The glycine can give rise to serine with the elimination of carbon dioxide and ammonia.甘油 3- 磷酸是丝氨酸的前体.Glycerate 3...
这是一座用石头建成的桥梁,桥洞都呈拱形, 非常结实, 既雅致又坚固.It was of stone arches, splendidly solid, and graceful as they were strong.脑袋从两耳间到后脑的地方略呈拱形.Skull - The skull is arched gently over the occiput from ear to ear.这房子的屋顶呈拱形.The house is roo...
The electron clouds are clearly visible as blurs surrounding the invisible nuclei.电子云就象环绕着看不见的核的一片云雾.The letter had many blots and blurs.信上有许多墨水渍和污迹.This creates a spectrum of colours at the edges of objects which blurs ...
他把工序倒过来了，从上往下建房子。He works backwards, building a house from the top downwards.这一新工序如何操作？What are the mechanics of this new process?还差一道工序.There's still one more step in the process....
He who blames one to his face is a hero , but who backbites is a coward.好汉当面责备, 懦夫背后诋毁.He who blames one to his face is a hero, but he who backbites is a coward.当面责人是英雄，背后中伤是懦夫。He is the person who backbites.他是那种背后说人坏话的人...