搭配 “have a migraine” 专指 “患有偏头痛”。这是一种严重且反复发作的头痛，通常伴有恶心、呕吐和视觉障碍等症状。除了 “a migraine” 以外，“a migraine headache” 也可以表示 “偏头痛”。在描述这个症状时，人们多在 “a migraine” 前加上 “get” 或 “suffer from”，即 “to get a migraine (headache)” 或 “to suffer from a migraine (headache)” 患偏头痛。
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例句
Tim has to take time off work sometimes because he gets really severe migraines. They can last for a couple of days.
蒂姆有时候不得不请病假，因为他的偏头痛很严重，可以持续几天。

She’s been under a lot stress at work and in her personal life lately, so Mika’s been getting more migraines than usual.
她最近工作和生活压力很大，所以米卡偏头痛发作的次数比平时要多。

I suffered from migraines when I was a teenager. I used to have one about once a month, but I don’t get them so much now.
我十几岁的时候，总是遭受偏头痛的折磨，一个月一次。但现在没有以前那样频繁了。