相关单词同义词wave, undulation, 近义词 variation 变种, wavering 摇摆的, 摇幌的..., vacillation 踌躇, rise and fall 涨落, 盛衰, oscillation 振动, flux 流量, ebb and flow 兴衰, instability 不稳定, changeability 变化无常, variability 易变临近词flu, Flutte 返回 fluctuation