All through the feudal ages the ruling class did their best to shackle women with Confucian ethics.历代封建统治阶级都力图用礼教把妇女禁锢起来.He's too young to shackle himself with the responsibilities of a family.他还太年轻，不能用家庭责任来束缚自己。He ...
European anemone with solitary white flowers common in deciduous woodlands.林地生长的每年落叶的只开一次白花的欧洲种银莲花.Red, Anemone _ flowered ; stout stems , long stalks , lage thick leaves in dark green , spreading, freely branched , medi...
The hydrogenation of diene compound and carbonyl group with yeasts was studied.对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究.EPDM is a terpolymer elastomer made from ethylene - propylene diene monomer.epdm是一种由乙烯 - 丙烯、二烯单聚物构成的三元共聚物弹性材料.The...