unproven
US /ʌnˈpruː.vən/
UK /ʌnˈpruː.vən/
形容词
1.
未经证实
not having been shown to be good enough or to be able to do something:
示例:
•
It would be unwise to throw billions at unproven technology.
在 Lingoland 学习这个单词
未经证实
not having been shown to be good enough or to be able to do something: