简单释义：

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adj. 危险的；艰险的

网络 冒险的；险恶；危机四伏

完整释义：

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adj.

1.殆,险,危险的;危机四伏的
2.危险的;冒险的
3.惊险的;冒很大风险;九死一生的
4.〔古语〕可怕的
5.异常困难

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例句：

1. For migraine sufferers, summer can be a perilous time of year.
   对偏头痛患者来说，夏季是一年中的危险时段。

2. This seemingly convenient assumption is perilous because the relationship between the locale and a currency is weak at best.
   这一表面上方便的假设是危险的，因为地区与货币之间的关系是脆弱的。

3. The empiricist Dennis knew that plugging along without a solid philosophical foundation was perilous.
   经验主义者丹尼斯知道，如果没有坚实的理论基础，拼命干活是危险的。

4. ambitious climbs up high and perilous stairs, and never cares how to come down; the desire of rising hath swallowed up his fear of a fall.
   野心家攀登又高又险的阶梯，从不考虑怎样下来。向上爬的欲望吞噬了对跌落的恐惧。

5. His guide Gadiel Cho Sanchez was hired to help him navigate a particularly perilous stretch but ended up staying for the entire expedition.
   他雇佣的导游加迪尔·赵·桑切斯本来是协助他走过特别危险的一段路，但最终，桑切斯陪伴埃德走到最后。

6. And a ship without rudder may wander aimlessly among perilous isles yet sink not to the bottom.
   即使没有舵，船只也只是在险岸边漂摇不定，而不会沉沦海底。

7. On their perilous journey across the desert they finally spotted signs of what they believed was Syrian habitation.
   他们千辛万苦穿越沙漠，终于看到了以为是叙利亚居民的居住地。

8. To be chosen as Mao's successor was the most perilous position one could be put in.
   毛的继任者处在一个十分危险的位置。