risky

a. 危险的(冒险的,大胆的)

He would not have succeeded in such a risky business if he had not been such a clever entrepreneur.

假若他不是那麽精明强干的企业家, 就不会在这样冒险的事业中取得成功.

So risky as to require very deft handling.

冒险的冒险的，需灵巧处理的