Dangerous and difficult
险───Risk;艰───Difficulties
He had shown himself careless of personal safety where the life of his colleagues might be at risk.───当同事身处危险时他表现英勇，不顾个人安危。
Mrs Anne Sterling did not think of the risk she was taking when she ran through a forest after two men.───安妮·斯特林夫人穿越森林追赶那两个男人时,没有去想自己所冒的风险.
They argue that the commission should risk courting unpopularity and push on with its legislative programmes.───他们认为委员会应该甘冒不受欢迎的风险来推进其立法项目。
This was one risk that paid off.───这是一个成功的冒险。
Has he taken the measure of us and concluded that we're not willing to risk a life?───他有没有掂掂我们的分量，知道我们并不愿冒生命危险？
Environmentalists say there is a high risk of pollution from the landfill site.───环境保护工作者说废渣埋填地很可能造成污染.
He was putting himself at risk.───他在把自己置于危险境地。
We can't risk big things for the sake of small ones.───我们不能因小失大.
Giving up smoking reduces the risk of heart disease.
Do nuclear weapons really reduce the risk of war?
Investors were unhappy about the risk.
Any investment involves an element of risk.
Any business venture contains an element of risk.