人类是一个古老的物种。
New World fox; often considered the same species las the Old World fox.
新世界狐狸；经常被认为与东半球狐狸是同一个品种。
Species delimitation is an old issue that has recently attracted renewed attention.
物种界定是个很古老的问题，近年来又引起了重新关注。
Species delimitation is an old issue that has recently attracted renewed attention.
物种界定是个很古老的问题，近年来又引起了重新关注。
应用推荐