評(píng)論
打印
Iron
鐵
Iron is a very important element in our lives.
鐵是我們的生活中非常重要元素。
It is a kind of metal.
它是一種金屬。
Thousands of years ago, people with iron swords and armor were the most powerful people.
幾千年前，擁有鐵劍和鐵甲的人是最強(qiáng)大的人。
Now, it is used to build buildings, machines and automobiles.
現(xiàn)在，它被用來(lái)建造建筑物、機(jī)器和汽車(chē)。
Is iron expensive? No, it isn't.
鐵很昂貴嗎？不昂貴。
There is a lot iron in the Earth.
地球上的鐵資源很豐富。
Do you know where else we can find iron? In the human body.
我們還能在哪里找到鐵？人的身體里。
Like other animals, humans need iron.
像其它動(dòng)物一樣，人也需要鐵。
In human blood, there is iron.
人的血液里有鐵。
If you don't have enough iron in your blood, you may become very sick.
如果你的血液含鐵量不足，你可能就會(huì)生重病。
