相关单词近義詞 back down 放棄, bow out 退出, pull out 拔出, chicken out 因害怕而停止做某事..., back up (因積聚而)擁堵...臨近詞backfat, back, back reference, back and belly, back of beyond, back-bencher, back reflector, back mortaring, back-folding, backing vocals, back elevation, back-project 返回 back off