名词
经典对话
1. 头痛
If you have a headache, you have a pain in your head.
2. 使人头痛的事;棘手的事;难题
If you say that something is a headache, you mean that it causes you difficulty or worry.
1. something or someone that causes anxiety
a source of unhappiness
e.g. New York traffic is a constant concern
it's a major worry
2. pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
Synonym: head achecephalalgia