短语词组短语barrier r bar -lagoon system 障壁沙坝barrier -bar trap 障壁砂坝圈闭barrier sand bar 障壁沙坝barrier bar -lagoon system 障壁沙坝earthquake -induced barrier bar 地震堰塞坝bar Barrier 阻挡移动bar -rier 使复杂化 返回 barrier bar