With fecund and loose with the arenaceous qualitative soil with good drainage had better.以肥沃疏松和排水良好的砂质土壤为好.fecund mind创造力旺盛的头脑Large animals are less fecund than small ones.大动物没有小动物繁殖能力强。The pampas are still among the mos...
It is ultimately washed ashore in the spleen, the junkyard of the circulatory system.最后,它被冲到循环系统的废弃物堆积场--脾脏.Their appearance looks like junkyard throw - up . They are dumb as a rock.变形金刚们的出现如同堆在一起的汽车废铁,迟钝的像大石头一般.He rescu...
绝大多数非线性微分方程是不能用解析方法求解的.The overwhelming majority of nonlinear differential equations are not soluble analytically.与微分相反的运算叫做积分.The operation that is the inverse of differentiation is called integration.这称为正规微分方程组.This is...