[àn jiāo xiǎn tān]
[暗礁險灘]
[当代成语]
[艰难险阻]
[暂无内容]
[中性成语]
[常用成语]
暗礁：隐没在水中的岩石；险滩：水流湍急的地方。比喻隐藏的祸患和危险
作主语、宾语、定语；指危险
这河段特别复杂，到处都是暗礁险滩
hidden reefs and dangerous shallows <hidden rocks and rapids>
