at a venture
 冒險地,胡亂地,碰運氣地,隨便地


 Ven·ture n.
 1. An undertaking of chance or danger; the risking of something upon an event which can not be foreseen with certainty; a hazard; a risk; a speculation.
    I, in this venture, double gains pursue.   --Dryden.
 2. An event that is not, or can not be, foreseen; an accident; chance; hap; contingency; luck.
 3. The thing put to hazard; a stake; a risk; especially, something sent to sea in trade.
    My ventures are not in one bottom trusted.   --Shak.
 At a venture, at hazard; without seeing the end or mark; without foreseeing the issue; at random.
    A certain man drew a bow at a venture.   --1 Kings xxii. 34.
    A bargain at a venture made.   --Hudibras.
 Note: ☞ The phrase at a venture was originally at aventure, that is, at adventure.