virtual,apparent,imaginary 如何区别?

virtual 实质上,实际上apparent：明显的imaginary：虚构的,想象中的apex：the highest point (of something); "at the peak of the pyramid"the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed starsvertex：the point of intersection of lines or the point opposite the base of a figure同apex1 再问： the highest point (of something); "at the peak of the pyramid" 这个解释对了一部分 the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars 这个解释与本题无关 the point of intersection of lines or the point opposite the base of a figure 这个解释也对了一部分 同apex 这个解释基本错了，至少是不全对。