One of the office girls was down with the flu.一位女职员得了流感。He cracked jokes and talked about beer and girls.他爱说笑话，喜欢谈论啤酒和姑娘。Boys and girls will enjoy messing about with any kind of machine.男孩和女孩会喜欢摆弄各种机械装置。...
...the age when girls get interested in boys.姑娘开始对小伙子感兴趣的年龄" The girls will make short work of anybody they find ratting!小姊妹们听说谁是走狗,就要打她!Girls are liable to other distempers besides the small - pox.女孩子们除了出天花还会出旁的毛病的.Girl...
Macromolecules cannot approach the ligand owing to steric hindrance of the matrix.由于载体的立体位阻的关系,大分子化合物不能接触到配基.It is occasionally necessary to use a number system to designate the position of each ligand.有时需要用一种编号系统来标明各配体的...