The polypepticle chains in elastin are present in a random arrangement.弹性蛋白内的多肽链以一种纹乱的排列而存在.They have a yellowish color owing to the accumulation of elastin in the media.因中膜中含有很多弹性纤维所以呈黄色.Collagen and elastin provide the...
Gwendolen started fighting her teachers.格温德琳开始同老师争执起来。Gwendolen smiled tearfully.格温德琳含着眼泪笑了笑。I would do anything in the world to ensure Gwendolen's happiness.为了使温黛琳得到幸福,无论要做什么事情,我都愿意呀....
She took it calmly at first but under the surface was seething...她起初平静地接受了，但内心却气呼呼的。The resort is seething with tourists all year round.这处名胜一年四季游人如织。He dodged amongst the seething crowds of men.他在川流不息的人群中东躲西闪。A thin vene...