短语词组短語prothoracic theca 前胸鞘theca tumor 膜瘤reflecting theca 反光膜breast theca 胸甲theca interna 內膜層theca vertebralis 繙譯;硬脊膜dural theca 硬膜囊sperma theca 納精囊theca externa 外膜層 返回 theca