risk/ rɪsk /

1.noun [c/u] 
(danger) 危险

2.noun [c] 
(possibility,chance) 风险

3.noun [c] 
(dangerous person or thing) 危险事物

4.vt.
(endanger) 冒…危险

5.vt.
(take the chance of) 冒险做

to take a risk
担风险
to run the risk of sth/doing sth
冒着某事/做某事的危险
at risk
处于危险
at one's own risk
风险自负
to risk it
 [inf] 冒险一试