By measuring the motion of the galaxies in a cluster, astronomers can infer the cluster's mass.通过测量星系在一个星系团内的运动,天文学家们可以推定这个星系团的质量。They turned their telescopes towards other nearby galaxies...他们把望远镜转向附近其他星系。Space fli...
Maintainance of internal homeostasis is an essential feature of a normal body.内部稳态的维持是正常机体的本质特征。Homeostasis is the state of maintaining a constant composition of blood.体内平衡是保持血液中成分稳定的状态.The phenomena of cyclophysis and t...
Porcupines use their spines to protect themselves.豪猪用身上的刺毛来自卫。The cactus has spines.仙人掌有刺.Spines - this expression has been used by various writers with considerable latitude.刺,许多作者把这个词用在相当广泛的含义上....
热带色彩在我们北方暗淡的光线下可能显得有点刺目。Tropical colours may look rather harsh in our dull northern light.他跟着她走进光线暗淡的厨房。He followed her into a dimly lit kitchen.余烬仍在炉膛里发出暗淡的光。The embers still glowed in the hearth....
他们有更多的能源, 当他们跑动时大腿不会擦热.They have more power, and the thighs don't chafe when they run.此时,我是在擦热受着高原反应的折磨.I was suffering from sickness in Chahare.此时,我是在擦热受著高原反应的折磨.I was suffering from altitude sickness in Chahare....