unsure

US /ʌnˈʃʊr/
UK /ʌnˈʃʊr/
"unsure" picture
1.

不确定, 不肯定

not certain or confident about something

:
I'm unsure about the best way to proceed.
不确定如何最好地进行。
She felt unsure of herself before the presentation.
她在演示前感到不确定