headache
由此我们还可以举一反三出 -ache 作词尾的各种疼
toothache 牙疼
stomach ache 胃疼
backache 背疼
身体部位加上ache
就可以表达某个部位“疼”
那“头晕”你知道如何表达么?
syncope /'sɪŋkəpɪ/
n.
(also fainting episode)
a short period of time when a person becomes unconscious
晕厥
例：
Postural syncope occurs when the body cannot supply enough blood to the brain in theupright position because of low blood pressure.
直立时因血压过低导致大脑供血不足时会出现直立性晕厥。
faint /feɪnt/
adj.
to feel weak, as if you are about to become unconscious
虚弱无力;感到眩晕;快要晕倒似的
例：
She felt faint with hunger.
她饿得头昏眼花。
v.
to suddenly become unconscious for a short time, usually falling down
昏厥;晕倒
例：
He faints at the sight of blood.
他一见血就晕。
I nearly fainted in the heat.
我差点热晕过去。
She took one look at the hypodermic needle and fainted (dead) away (= becameunconscious immediately).
她一眼看到注射针头就昏了过去。
dizzy /'dɪzɪ/
adj.
feeling as if everything is turning around, and that you are not able to balance and may fall down
眩晕的，头晕目眩的，眼花缭乱的
例：
I felt dizzy with excitement as I went up to collect the award.
我去领奖时激动得有些眩晕。
Syncope is just another word for fainting from any cause, and usually means a problem with the heart. People can feel dizzy from a lot of different reasons, including vertigo, which is usually a problem with the ears, or other causes of dizziness that have to do with the nerves. But syncope means fainting from a disease of the heart.
Syncope是faint的另一种说法，通常隐含有心脏问题。人们会因为很多不同的原因感到头晕(dizzy)，包括眩晕，这通常是耳朵的问题，或其他与神经有关的原因。而syncope就隐含因心脏疾病而昏厥。
As adjectives the difference between dizzy and faint is that dizzy is having a sensation of whirling, with a tendency to fall; giddy; feeling unbalanced or lightheaded while faint is lacking strength; weak; languid; inclined to swoon; as, faint with fatigue, hunger, or thirst.
作为形容词，dizzy和faint之间的区别在于dizzy有一种旋转的感觉，有摔倒的倾向;眼花缭乱;感到不平衡或头晕眼花。而faint是缺乏力量;弱;没精打采;倾向于昏了过去;由于疲劳、饥饿或口渴而晕。
As verbs the difference between dizzy and faint
is that dizzy is to make dizzy, to bewilder while faint is to lose consciousness caused by a lack of oxygen or nutrients to the brain, usually as a result of a suddenly reduced blood flow (may be caused by emotional trauma, loss of blood or various medical conditions).
作为动词dizzy和faint的区别是,dizzy是致使头晕而迷惑，而faint是由于大脑缺氧而使人失去意识，通常是由于血流量突然减少的结果(可能是由于情感创伤、失血或各种疾病)。
今天的内容都学会了么?
欢迎评论交流心得~
Ref：
abcnews.go.com/Health/HeartRhythmScreening/story?id=5212663
wikidiff.com/dizzy/faint
