相关单词近義詞 shortcoming 缺點, weakness 軟弱, snag (隱伏的)障礙..., stumbling block 絆腳石, pitfall 陷阱, problem 問題臨近詞Downen, down, down packet access, down feather quilt, downfaulted trough, down dip deviation, down for the count, down motor garment, downhole equipment, downdraft gasifier, downhole explosion, downstate Illinois相似詞downriver, downs, downscale, downshift, downsize, downspout, downstage, downstairs, 返回 downside