Symptoms of anaemia include weakness, fatigue and iron deficiency.是什么意思？

Symptoms of anaemia include weakness, fatigue and iron deficiency.

贫血的症状包括虚弱、疲劳和缺铁。

symptoms

n. 症状( symptom的名词复数 )，征兆；

例句
I developed serious arthritic symptoms and chronic sinusitis.
我得了严重的关节炎和慢性鼻窦炎。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

anaemia

n. [医}贫血，贫血症，无活力，脸色苍白；

例句
She suffered from anaemia and even required blood transfusions.
她患有贫血症，甚至需要输血。

include

vt. 包括，包含，计入，包住；

例句
The tour will include games against the Australian Barbarians...
这次巡回赛将包括和澳大利亚野人队的比赛。

weakness

n. 弱点，缺点，软弱，优柔寡断，弱，衰弱，虚弱，〈口〉偏爱，癖好；

例句
The Treasury had been blaming the pound's weakness on the backwash from the falling dollar.
财政部一直将英镑的疲软归咎于美元贬值。

fatigue

n. 疲劳，疲乏，劳务杂役，（士兵穿的）工作服；vt. 使疲劳，使疲乏；vi. 疲劳；

例句
Clarke says his team could have lasted another 15 days before fatigue would have begun to take a toll.
克拉克说，他的团队本来还可以再坚持 15 天，只是疲劳可能会造成严重后果，只好作罢。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

iron

n. 铁器，铁制品，熨斗，烙铁，坚强，脚镣；adj. 铁制的，含铁的，坚强的，顽强的，残酷的，坚忍不拔的；vt. 熨烫，给…上脚镣手铐，给…装铁具，用铁铸成；vi. 熨衣，（衣服等）被烫平；

例句
Vitamin C increases the absorption of iron from food.
维生素C促进食物中铁的吸收。

deficiency

n. 缺乏，不足，缺点，缺陷，不足额；

例句
It's a chicken and egg situation. Does the deficiency lead to the eczema or has the eczema led to certain deficiencies?
这是个鸡和蛋的问题。是因为营养缺乏导致湿疹呢，还是湿疹导致了某些营养缺乏？