相关单词近义词 connotation 涵义, current 趋势, tide 趋势, undertow 底流, pull 拉, stream (小)河, flow 流动, feeling 感觉, hint 暗示, suggestion 建议, trace 痕迹, tinge 淡色, nuance 细微差别, undertone 低音, undertide 暗流临近词under, underfoot相似词underclothes, undercoat, undercook, undercover, undercut, underdeveloped, underdog, underdone, 返回 undercurrent