venture的意思

大胆提出(或说出);敢于[+to-v][+that]
I venture that you are wrong.
我冒昧说一句,你错了。
No one ventured to speak to him.
无人敢跟他讲话。

venture除了做名词外也可以做动词.

大胆保证

百度词典的意思：
venture

n.[C]
1. 冒险;冒险事业,投机活动
They were the astronauts on the first venture to the moon.
他们是首次登月球探险的宇航员。
2. 投机活动;企业
He has started a joint venture in Singapore.
他已在新加坡办起一家合资公司。
vt.
1. 使冒险;冒...之险;拿...冒险
They ventured their lives in exploring the desert.
他们冒了生命危险去沙漠探险。
2. 以...作赌注[(+on)]
He ventured large sums of money on speculative stocks.
他将大笔的钱拿去做股票投机。
3. 大胆提出(或说出);敢于[+to-v][+that]
I venture that you are wrong.
我冒昧说一句,你错了。
No one ventured to speak to him.
无人敢跟他讲话。
vi.
1. 冒险;大胆行事[(+on)]
He is too timid to venture upon a new undertaking.
他太胆小,不敢从事新的事业。
The children ventured out on the thin ice and fell through.
孩子们冒险踏上薄冰,结果掉了进去。

这里应该是对应3.大胆提出(或说出);敢