unsure

adj.

不确定的；缺乏信心的，无把握的；不稳定的；不可靠的

1. Consult your dictionary when you are unsure of your spelling.
   当你不敢肯定拼写时,就查阅一下词典。
2. He was unsure of what to do next.
   他对下一步该做什么犹豫不定。
3. If you are unsure about what to pick, click here.
   如果您不确定应该选择哪个选项，请单击此处。
4. Matteo Brighi admits he's unsure of his future at Rome.
   布里吉承认他不确定他在罗马的未来。
5. Beneath her self-confident surface, she's quite unsure of herself.
   她看上去信心十足，实际上很缺乏信心。

Disclosure When the Market Is Unsure of Information Endowment of Managers
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Predicting early adolescent disorder from childhood aggression and peer rejection
Predicting early adolescent disorder from childhood aggression and peer rejection. Journal of Consulting and Clinical Psychology, 60...
Source misattributions and the suggestibility of eyewitness memory
Methods and systems for participant sourcing indication in multi-party conferencing and for audio source discrimination
Racial Variation in Treatment Preferences and Willingness to Randomize in the Spine Patient Outcomes Research Trial (SPORT)