acour vent冲: powerful; with vim and vigou ...沙: sand孔: hole; opening; aperture沙孔: sand outlet冲沙: sand sluicing; sand wash; scouring away the silt; sluicing sand下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:冲沙孔，即可在微信中查询翻译
