相关单词近義詞 underclass 下層社會臨近詞lower end, lower, lower frequency limit circuit, lower limb arteriography unit, lower dead-center indicator, lower sideband characteristic, lowering of groundwater table, Lower Explosion Limits in air, lower limbs venous ulceration, lower limit of organic carbon, lower and upper approximation, lower reaches of Yellow River相似詞low-water mark, lowbrow, lower, lower case, lower house, lower your sights idiom, lowering, lowest common denominator, 返回 lower class