The human race has enough weapons to annihilate itself.人类有足够的武器灭绝自己。The philosopher speculated about the future of the human race.那位哲学家考虑过人类的前途.Can the human race carry on expanding and growing the same way that it is no...
花粉粒和雌蕊都具有活力.Both the pollen grains and the gynoecia are active.花粉粒富含线粒体 、 高尔基体以及内质网上.Pollen grains are rich in mitochondria, Golgi apparatus, and endoplasmic reticulum.显微观察可见,果中的刺球状花粉粒最为显著.We can see spinous pollen grain...
赛前他状态很好，赛后就筋疲力尽了。Before the race, he is fine. But afterwards he is worn out.那场展览陈述的想法很好，但是没能实现。The ideas in the show's presentation were good, but failed in execution.你不用担心我。我水性很好。You don't have to worry about ...