headaches
If you have a headache, you have a pain in your head.
I have had a terrible headache for the last two days.
最近两天我头痛得难以忍受。
If you say that something is a headache, you mean that it causes you difficulty or worry.
The airline's biggest headache is the increase in the price of aviation fuel.
令航空公司最头疼的问题是航空燃料价格的上涨。