词汇	红龙
释义	红龙 red arowana
随便看	barrier of speech barrier barrier of tariff barrier on a high-way barrier option barrier options barrier optlon barrier package barrier packaging barrier packing barrier paper barrier parameter barrier part barrier-passageway barrier patrol barrier penetrance barrier penetration barrier penetration in alpha decay barrier penetration in fission barrier pentration barrier performance barrier permeability barrier phenomenon barrier pile barrier pillar barrier-plane photocell