英语单词分类：危险

dangerous: likely to cause death or
serious harm, or cause something bad to happen危险的
Snow and ice are making driving
conditions very dangerous.
冰雪令行车环境相当危险。
dangerous drugs
危险药物
a dangerous criminal
一名危险罪犯
risky: if something is risky, somethingbad could easily happen or you could easily make a mistake有风险的
Doctors said it was too risky to
operate.
医生说风险太大，不能动手术。
a risky situation
危险的局势
hazardous:
especially written书面 dangerous - used especially about substances， jobs， and journeys 〔尤指物品、工作或旅行〕危险的
hazardous waste
危险废弃物
hazardous chemicals
危险化学物
hazardous occupations
危险职业
The expedition was extremely
hazardous.
这次探险活动极其危险。
unsafe: dangerous because someone isvery likely to be hurt - used especially about places or conditions 〔尤指地方或环境）不安全的