短語(yǔ)詞組短語(yǔ)Mesoamerican Barrier Reef System 中美洲大堡礁系統(tǒng)fire barrier detection system 偵火系統(tǒng)barrier coast system 障壁海岸沉積體系fire barrier control system 射擊控制系統(tǒng)Barrier Isolation System 無(wú)菌隔離系統(tǒng)barrier r system 屏障系統(tǒng)barrier lagoon system 沙壩Barrier Island System 障壁島體系 返回 barrier system