1. 形容詞
   危險的
   不安全的, 招致危險的
   dangerous for ...(人):
   對...有危險的
   對...很危險的
   (主詞限定it)dangerous to ...(動詞...):
   做...是危險的
   (主詞限定it)dangerous for ...(A: 人) to ...(B: 動詞...):
   (A)做(B)是危險的
   

   同義字詞
   grave,grievous,hazardous,jeopardizing,menacing,parlous,perilous,risky,serious,threatening,unhealthy,unsafe,venturesome
   adverse,bad,baleful,baneful,damaging,deleterious,detrimental,evil,harmful,hurtful,ill,injurious,mischievous,nocuous,noxious,pernicious,prejudicial,wicked
   

例句

1. If so.. he's dangerous .
2. It was also quite dangerous .
3. But that's a very dangerous play.
4. For them different means dangerous .
5. Dangerous , she thought, and ruthless too.
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