v hinder or prevent (the efforts, plans, or desires) of
v treat cruelly
vt. 挫败, 击败, 破坏
a. 无益的, 挫败的, 挫折的
1. I felt frustrated when I couldn't solve the math problem.
当我无法解决这个数学问题时，我感到沮丧。
2. It frustrates me when people don't listen to my ideas.
当人们不听我的想法时，我感到很沮丧。
3. The long wait at the airport can frustrate many travelers.
机场的漫长等待可能会让许多旅客感到沮丧。