Rare birds preen themselves right in front of your camera.很少有鸟类会在镜头面前梳理自己的羽毛。A real man didn't prance around and yap at the mouth and preen for the camera.显然生活中的人不会在摄影机前跃马而起,厉声喝斥,刻意打扮.He never cared a preen for her....
There was no hepatosplenomegaly or lymphadenopathy, but severe exfoliative dermatitis was observed.肝、不肿大,淋巴结未触及, 但发现严重的剥脱性皮炎.Lymphadenopathy as an adverse response to drugs and allergies is well recognized.药物不良反应或过敏而致的淋巴...
为了凝结氯乙烷气体,必须使用大量的冷却水.Great quantities of cooling water must be available for condensation of the ethylchloride.简述了二氯乙烷的理化性质 、 作业标准和法规.The article describes the physico - chemical properties, operative standers and laws o...