相关单词近义词 arduous 费力的, punishing 艰难持久的, hard 硬的, exhausting 疲倦的, demanding 要求多的, taxing 费力的, tough 强硬的, harsh 粗糙的, harrowing 悲痛的, nerve-racking 伤脑筋的, operose 费力的, grueling 折磨人的, toilsome 费力的, heavy 大(量)的, laborious 艰苦的, backbreaking 非常辛苦的临近词gruel相似词grudge, grudge match, grudging, gruel, gruesome, gruff, grumble, grumbling appendix, 返回 gruelling