1520s, "certain," from cock (n.1) + sure (adj.). Probably "as assured as a cock." "The word was originally perfectly dignified, and habitually used in the most solemn connexions" [OED].
雙語例句
1. He is too bloody cocksure about everything.
他對于每一件事都過于自信.
來自《簡明英漢詞典》
2. Don't be so cocksure that he will succeed.
不要那么確信他會成功.
來自《簡明英漢詞典》
3. [ Little ] Where's the cocksure sky jock I had last week?
上星期那個可靠的飛行員到哪里去了?
來自電影對白
4. He's so cocksure I'd love to see him proved wrong.
他過分自信--我 倒 想看看他栽跟頭.
來自互聯(lián)網(wǎng)
5. Don't be too cocksure and take things for granted.