ail [eɪl]

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vi.生病，折磨，苦恼；vt.使苦恼，使烦恼；n.病痛，苦恼

to cause difficulty and problems for

It may provide answers to some of the problems that ail America. 这一点可能解答困扰美国的某些问题。
Seek your sauce where you get your ail. 心痛还须心药治。