trepidation

他怀着忐忑不安的心情走进了面试室。

He entered the interview room with ___trepidation.

她带着忐忑不安的心情踏上空荡荡的舞台，第一场独奏即将开始。

With ___trepidation, she stepped onto the empty stage, her first solo recital about to begin.

他怀着惶恐打开了体检报告，不知道结果会显示什么。

He opened the medical report with ___trepidation, unsure what the results would show.