相关单词同義詞arduous, exertive, 近義詞 sweat 汗水, burdensome 負擔的, arduous 費力的, grueling 折磨人的, gruelling 繁重而累人的..., laborious 艱苦的, hard 硬的, strenuous 奮發的, exhausting 疲倦的, taxing 費力的, wearisome 使疲倦的, punishing 艱難持久的, operose 費力的, toilsome 費力的, heavy 大(量)的臨近詞back, backpart相似詞backbite, backbiting, backboard, backbone, backchannel, backchat, backcomb, backcountry, 返回 backbreaking