indeterminacy doubtful doubt confusion touch-and-go not sure be uncertain
It is an open question how long that commitment can last.
这一承诺能维持多久还不确定。
—— 柯林斯例句Nancy wasn´t sure if Dirk was making a pass at her.
南希不确定德克是不是在勾引她。
—— 柯林斯例句I doubt I would change anything if I had my time again.
如果能重新活过,我不确定自己是否愿意做出任何改变。
—— 柯林斯例句Even to this day we don´t know what happened for sure.
即使到现在我们也不确定究竟发生了什么。
—— 柯林斯例句"I´m not sure," Liz said vaguely.
“我不确定,”利兹含糊其词地说。
—— 柯林斯例句