单词	back echo
释义	back echo [电] 反回波
随便看	berth post berth rate berth rates Berth Ready Clause berth revenue berthrong berths berth safety rope berth safety strap berth safety strap clamp berth safety strap hook berth schedule berth service berth shifting berthside berth side frame berth signal berth support berth telephone berth term berth term charter berth terms berth throughput berth throughput capacity berth ticket 经冬复立春经冬犹绿林经冬犹绿林经冬犹绿林经历久远期无佗经历久远期无陀经年才见经年至茅屋经时信音绝经此桥トツゼンヘンイトツトシテトツトツトツニュウトツベントツメンキョウトツレンズトツ国トテトテイ