trepidation

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++trep·i·da·tion /ˌtrepəˈdeɪʃən/ noun [uncountable]  FRIGHTENEDa feeling of anxiety or fear about something that is going to happen 惊恐，惊惶，不安 With some trepidation, I opened the door. 我有些惴惴不安地打开了门。

Examples from the Corpus

trepidation• Some of this apparent trepidation is due to overwhelming self criticism of the proposal.• I open my home with some trepidation and humility.• It was a day that should rightly be viewed with some trepidation, but not in the time of Amos.• It was with some trepidation that I slid a 5-pound chicken with peeled, quartered potatoes into the 500-degree oven.• I threw in my entire savings toward the down-payment and, with trepidation, agreed to manage the building.• When the world descended on Sydney last month it was with trepidation.Origin trepidation (1400-1500) Latin trepidatio, from trepidare “to shake”

trep·i·da·tion nounChineseSyllable  

fear Corpus a something of about anxiety or feeling

trepidation
trep‧i‧da‧tion /ˌtrepəˈdeɪʃən, ˌtrepɪˈdeɪʃən/ noun [uncountable]a feeling of anxiety or fear about something that is going to happen:
    With some trepidation, I opened the door.

trepi·da·tionBrE /ˌtrepɪˈdeɪʃn/ 🔊NAmE /ˌtrepɪˈdeɪʃn/ 🔊 noun [uncountable] (formal) great worry or fear about sth unpleasant that may happen 惊恐；恐惧；惊惶；不安