常見(jiàn)例句Steelhead populations and rainbow trout populations can and do interbreed at different levels.剛頭種群和虹鱒種群可以襍交，實(shí)際上也發(fā)生不同水平的襍交。It is possible for the offspring of rainbow trout to become anadromous and for the offspring of steelhead to develop a resident life history.陸封的虹鱒後代可以轉(zhuǎn)變成溯河型，溯河剛頭後代也可以轉(zhuǎn)變成陸封型。 返回 steelhead