Lectin is a large molecule glucoprotein and can agglomerate the cell.凝集素是一种能作用于细胞使其凝聚的大分子物质,大多属糖蛋白.The structure of the chlorophyll molecule is known . It consists ofporphyrin.叶绿素的分子结构已经搞清, 它是由卟啉组成的.Scientists call this ...
wild and farmed salmon野生和人工养殖的鲑鱼He farmed in the south for many years.他曾在南方务农多年。Now are also hatcheries in which fish are farmed.现在也有一些鱼苗孵化场可以人工养殖鱼类.Many animals may be farmed or ranched to create a valuable legal trade....
He was jamming with his saxophone.他在即兴吹奏萨克斯管。He started his career in show business by playing the saxophone and singing.他的演艺生涯是从吹奏萨克斯和唱歌开始的。He took a saxophone from the Salvation Army but was caught and had to hand it b...