Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.The blastocyst is then surgically introduced into the uterus of a foster mother.然后通过手术把胚囊引进寄养母体的子宫...
Lutein is dihydroxy - carotenoids with the ionone ring systems distributed widely in nature.叶黄素是含紫罗酮环的二 羟基 类胡萝卜素,在自然界广泛存在.Active ingredients: Plant extract, Amino acid, milk powder , carotinoid, lutein etc.主要成分: 植物提取物 、 ...
不要等待好事降临，你要向幸福进发。Do not wait for good things to happen to you. You need to walk towards happiness.乐团在周一的圣灵降临节举行了首场演出。The orchestra gave its first performance on Whit Monday.冬天的突然降临让铁路和航空运输系统陷入混乱。The sudden onset of winte...
I shall await your answer to my letter with eagerness.急盼复信.Numerous pitfalls await unsuspecting investors.数不清的陷阱等待毫无戒心的投资者.I shall await you at seven - thirty or thereabouts.我将在7:30分左右等着你....
直到1880年，英国才开始实行初等义务教育。Britain did not introduce compulsory primary education until 1880.对录像片内容实行了更为严格的监管。Stricter controls were placed on the content of video films.面包、大米和茶叶等日常必需品已实行配给。Staples such as bread, rice and tea...