unclear
🇺🇸
/ˌʌnˈklɪr/
🇬🇧
/ˌʌnˈklɪə(r)/
not easy to understand or know for sure
The instructions were unclear, so I asked for help.
说明不清楚,所以我请求了帮助。
not sure about something
I'm unclear about the meeting time.
我对会议时间不太确定。