dangerous /ˈdeɪnʤərəs/ adjective Learner's definition of DANGEROUS
[more dangerous; most dangerous]
1
: involving possible injury, harm, or death : characterized by danger危险的；不安全的 -
Mining is dangerous [=hazardous] work.采矿是危险的工作。
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They complained to their boss about the dangerous [=unsafe] working conditions.他们向老板抱怨工作环境危险。
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She got into a car accident while driving through a dangerous intersection.当驶过一个危险的十字路口时，她出车祸了。
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He often drives at dangerous speeds.他常以危险的速度驾驶。
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The city can be a dangerous place to live.住在这座城市里会有危险。
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dangerous neighborhoods不安全的街区
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often + to 2
: able or likely to cause injury, pain, harm, etc.能够（或可能）引起危害的 -
The storms may cause dangerous flooding.暴风雨可能会引发凶险的洪水泛滥。
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He is wanted for assault with a dangerous weapon.他因持危险武器袭击他人被通缉。
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dangerous animals危险的动物
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the most dangerous of drugs危害最大的毒品
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a dangerous enemy危险的敌人
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The police say that the man is armed and dangerous. [=he has a gun and he might try to shoot someone]警方说那名男子持有武器，很危险。
dangerous ground/territory
: a situation in which you may do or say something that will have a bad result, make people angry, etc.危险处境；令人气愤的场合 -
As the conversation turned to politics, I knew we were heading into dangerous territory.当交谈话题转向政治时，我知道我们正在走近雷区。
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You know you're treading on dangerous ground, don't you?你知道你在冒犯别人，对吗？
— dangerously
adverb -
She suddenly became dangerously ill.她突然病危。
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dangerously high levels of pollution危险的重度污染
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They came dangerously close to being caught.他们差一点就被抓到。
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He has always enjoyed living dangerously.他一直喜欢过冒险生活。
— dangerousness
noun [noncount]