unawares
01
无意中, 不经意地
without forethought or plan; inadvertently
02
突然, 意外地
suddenly and unexpectedly
例子
The sudden question caught him unawares, and he struggled to respond.
这个突然的问题让他措手不及，他努力想回答。
She was taken unawares by the unexpected change in plans.
计划的意外变化让她措手不及。
