We watched the cow suckling her calves.我們看了奶牛如何給小牛喂奶。Chymosin used traditionally in cheese making is an aspartic protease extracted form abomasum of suckling calves.傳統干酪加工中使用的凝乳酶是從犢牛皺胃中提取出的一種天冬氨酸蛋白酶.The calves were reall...
a cow suckling her calves給小牛吃奶的母牛The ancient Greeks sacrificed lambs or calves before engaging in battle.古希臘人在打仗前用羊和小牛作祭品.The colts and calves are gambolling round the stockman.小馬駒和小牛犢圍著飼養員歡蹦亂跳....