risk doing sth. 冒险做某事
"risk" 后面直接接动名词 "doing"，表示主语采取某种行动，这种行动本身就带有一定的风险或可能带来不确定的结果。说明risk后如果直接接动词，动词要用动名词形式。
We've been advised not to risk travelling in these conditions.
我们受到忠告，在这种条件下不要冒险出行。
To win the gamble, he risked losing 100 dollars.
为了赢这场赌局,他冒了失去100美元的风险。
They knew they risked being arrested.
他们知道自己冒着被捕的危险。
If executives fail to exploit the opportunities of networking they risk being left behind.
如果高管们未能抓住机会建立关系网，他们就有落后的风险。
The captain was not willing to risk taking his ship through the straits in such bad weather.
船长不愿意在这样恶劣的天气里冒险将船驶过海峡。
It would be suicidal to risk going out in this weather.
在这种天气冒险出去，真是不要命了。
We risk upsetting the ecological balance of the area.
我们有可能破坏这个地区的生态平衡。
He was far too canny to risk giving himself away.
他很精明，不会冒险暴露自己。
Don't risk missing your flight by leaving late.
不要冒险因为出发晚而错过你的航班。
I don't want to risk offending him by speaking my mind.
我不想冒险通过直言不讳来冒犯他。
He risked going out in the storm to rescue the stranded hikers.
他冒险在暴风雨中出去救被困的徒步者。
The team risked losing the game by making that aggressive play.
通过进行那个积极的动作，这支队伍冒险输掉了比赛。
Risk doing anything that might lead to failure is stupid.
冒险做可能失败的事情是愚蠢的。
拿什么用什么区冒险，则是一下句型：
He risked his life to save her.
他冒着生命危险去救她。
He risked his life to save the child from the burning building.
他冒着生命危险从燃烧的建筑物中救出了孩子。
She risked everything to pursue her dream of becoming an artist.
她为了追求成为艺术家的梦想而豁出了一切。
另外，要注意risk作名词的用法：
You're taking a big risk showing this to Kravis.
你把这个给克拉维斯看会有很大的风险。
The officers had run the risk of being dismissed...
这些警官冒了被开除的风险。
We don't want to run the risk of losing their business.
我们不想冒险失去他们的生意。
Giving up smoking reduces the risk of heart disease.
戒烟会减少得心脏病的风险。
Obesity can increase the risk of heart disease.
肥胖会增加患心脏病的危险。