He ventured his whole for tune on a new stock. 他把所有的钱都拿来买入一种新上市的股票
Nothing venture, nothing have [gain, win].=Nothing ventured, nothing gained. 【谚】 不入虎穴焉得虎子.
venture oneself 甘冒风险,不加思考地做 <into the street etc.>.

I venture to differ from you. 对不起,我不同意你的意见
I hardly venture to say it, but... 我本来不敢说的,可是…
If I may venture an opinion, I'd say … 请容许我大胆提出意见,我觉得…

venture upon a new undertaking 大胆从事一项新的事业
She is too shy to venture at it. 她很〔1171〕腆,不敢做这事.

embark on a new scientific venture 从事一项新的科学研究活动
establish a joint venture 成立合资企业.