相关单词近义词 mouth 嘴, vent 排气口, duct 管道, channel 频道, culvert 涵洞, drain 排出, waste pipe 废水管, outlet 出路临近词Outin, out, outcoming power., out beyond control, out of all dispute, out of one's depth, out of expectation, out of city center, out of accord with, out - put effect, out slot signaling, out of one's teens 返回 outfall