frustrate/ˈfrʌs.treɪt/动词阻挠,阻止;挫败The continuing civil war is frustrating the efforts of relief agencies.持续的内战使救济机构的努力受挫。使灰心,使气馁The constant delays in the project began to frustrate the team members.项目中不断的延误开始使团队成员感到灰心。想跟读,去练习