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unsure
01
不確かな
having doubts about or no confidence in someone or something
02
不安な
not confident enough in oneself, especially in one's abilities
例
The student was unsure about the homework assignment.
She felt unsure about taking the new job.
They were unsure where to go on vacation.
She looked unsure when asked to give a speech.
He was unsure if he wanted pizza or pasta for dinner.
