frustrating
/ˈfrəˌstreɪtɪŋ/
hinder or prevent (the efforts, plans, or desires) of
中文释义：使沮丧；阻挠
The constant delays frustrated the passengers waiting at the airport.
不断的延误使在机场等候的乘客感到沮丧。
His lack of progress frustrated his efforts to learn the language.
缺乏进展阻碍了他学习语言的努力。