词she was unsure whether he was friend or foe .
她无法确定他究竟是朋友还是敌人。
she was unsure whether he was friend or foe .
她无法确定他究竟是朋友还是敌人。
she hesitated, unsure of what to say.
她犹豫不决，没有把握该说什么。
I myself am unsure how this problem should be handled.
我自己不能确定这个问题应该怎样处理。
she was feeling nervous, unsure of herself.
她感
，对自己没有信心。
They looked unsure and shifted uneasily from foot to foot.
他们看上去没有把握，站在那儿左右脚换来换去不安地晃着。
Though unsure how her speech would be received, she remained calm and professional throughout.
尽管她不能确信演讲是否会被接受，但她一直保持镇定且职业化
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