短语词组短語burrow pore 生物鑽孔pelecypod burrow 瓣鰓動物潛穴crawling burrow 爬行潛穴entrapment burrow 覆埋穿孔protrusive burrow 前進式潛穴Halfling Burrow 半身人地穴John Burrow 約翰·佈羅accessory burrow 副穴burrow into 探查 返回 burrow