“杂交的”用英语怎么说

种间杂交的主要障碍是F1代的不育性.A major barrier to interspecific hybridization is sterility in the F 1 progeny.那是一株杂交的四季开花的蔷薇.That is a hybrid perpetual rose.骡子是一种杂交的变态产物, 本来是不该饲养的.Mules are misbegotten, unnatural critters and it ough...