Pockets of affluence coexist with poverty...少数富裕地区与贫困地区并存。Love and hate coexist in every trivial affair.每一件细碎琐事都充塞着这般爱恨和矛盾交缠.Two or more biosynthetic pathways may coexist in a single cell.在同一细胞中可能同时存在两条或更多条生物合成途径.A viole...
这种特殊形态的维生素D天然存在于母乳中。This special form of vitamin D is naturally present in breast milk.母乳喂养有许多益处。There are many advantages to breast-feeding.主流科学家宣称母乳喂养的婴儿更聪明。Leading scientists claim breast-fed babies are intellectually...