相关单词同义词intense, tough, rough, 近义词 active 活跃的, arduous 费力的, energetic 精力旺盛的, laborious 艰苦的, hard 硬的, vigorous 精力充沛的, difficult 困难的, rugged 高低不平的, intense 强大的, rough 粗糙的, exhausting 疲倦的, painful 痛苦的, tiresome 令人厌倦的, troublesome 令人烦恼的, taxing 费力的, tiring 令人疲倦的, demanding 要求多的, backbreaking 非常辛苦的, tough 强硬的, determined 坚定的, spirited 精神饱满的, tireless 不知疲倦的, persistent 坚持的, dogged 顽固的, straining 拉紧临近词stress, strengthen, strenuously, strenuousness, strenuous test, strenuous object, strenuous labour, strenuous workers, strenuous activity, Strenuous training, strenuous opponent, strenuous exercise相似词streetwise, strength, strengthen, strengthen sb's hand idiom, strep, strep throat, streptococcus, stress, 返回 strenuous