persistent

US /pɚˈsɪs.tənt/
UK /pɚˈsɪs.tənt/
"persistent" picture
1.

坚持不懈的, 持续的, 顽强的

continuing firmly or obstinately in a course of action in spite of difficulty or opposition

:
She was persistent in her efforts to learn English.
坚持不懈地学习英语。
His persistent questioning eventually led to the truth.
坚持不懈的追问最终揭示了真相。
2.

持续的, 顽固的, 持久的

(of an unwanted phenomenon) continuing to exist or occur over a prolonged period

:
The persistent cough kept him awake all night.
持续的咳嗽让他整夜未眠。
We need to find a solution for this persistent problem.
我们需要找到解决这个持续存在的问题的方法。