crater vent火: fire口: mouth孔道: a narrow passage providing t ...泉口孔道: vent hole口孔: aperturae; buccal aperture; mouth opening; oral aperture; oral opening; oral pore; osculum; throat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:火口孔道,即可在微信中查询翻译