be unsuccessful
US /bi ʌnˈsʌk.səs.fəl/
UK /bi ʌnˈsʌk.səs.fəl/
短语
不成功, 失败
to fail to achieve a desired outcome or goal
示例:
•
Despite their best efforts, they continued to be unsuccessful in their attempts to climb the mountain.
尽管他们尽了最大努力，但他们仍然未能成功攀登这座山。
•
If you are unsuccessful in your first attempt, don't give up.
如果你第一次尝试不成功，不要放弃。