chance on 或 chance upon 1 . 偶然找到,偶然遇到;偶然碰到 as chance would have it 2 . 凑巧,偏偏 by any chance 3 . 万一,也许(用于试探性的询问或提议) chance one's arm (或 luck) 4 . (英,非正式)冒险一试 chance would be a fine thing 5 . (非正式)成功固然好,只惜良机少 no chance 6 . (非正式)绝无可能 on the (off) chance 7 . 万一 stand a chance 8 . 有(成功或生存的)希望 take a chance (或 chances) 9 . 冒险 take one's chance 10 . (为了成功而)冒险,碰运气 习惯用语 by chance 1 . 意外地;偶然地 on the off chance 2 . 万一发生:抱着微小的希望或可能性