相关单词同义词achievement, success, pain, struggle, trial, 近义词 achievement, attempt, creation, deed, energy, struggle临近词effortless, efflux, efforts, effortil, effortful, effort arm, Effort Cost, effort swim, effort level, Effort Model, effort index, effortfulness相似词effing, effleurage, efflorescence, effluent, effortless, effrontery, effulgent, effusion, 返回 effort