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...
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 ...