1、gravity的双解释义是：n.(名词)[U]地心引力,重力 on the earth pulls them towards the center of the planet, so that things fall to the ground when dropped[U]严重性; 严肃,庄严 importance seriousness; solemnity。2、gravity的例句是用作名词(n.)He discoursed impressively on Newton's theory of gravity.他讲述了牛顿的引力定律，给人以深刻的印象。3、gravity【近义词】solemnity庄严。