名词
1. Today the survival of our species is threatened.
今天人类的生存受到了威胁。
2. species
2. All species will breed inter se.
所有的生物都在其种内进行繁殖。
3. The giant panda has become an endangered species.
大熊猫已成了一种濒临灭绝的动物。
4. There are many species of chrysanthemum.
菊花品种很多。