risk
英 [rɪsk]
美[rɪsk]
	    - n. 风险;危险;冒险
 - vt. 冒…的危险
 - n. (Risk)人名;(英、阿拉伯)里斯克
 
英英释意
- 1. a source of danger; a possibility of incurring loss or misfortune;
 - "drinking alcohol is a health hazard"
 
- 2. a venture undertaken without regard to possible loss or injury;
 - "he saw the rewards but not the risks of crime"
 - "there was a danger he would do the wrong thing"
 
- 3. the probability of becoming infected given that exposure to an infectious agent has occurred
 
- 4. the probability of being exposed to an infectious agent