評論
打印
Oxygen
氧氣
Can you touch or feel oxygen in the air?
你能觸摸或感受到空氣中氧氣嗎？
Oxygen has very unique characteristics.
氧氣有非常獨特的性質。
You cannot see oxygen because it doesn't have a color.
你看不到氧氣，因為它沒有顏色。
Also, oxygen does not melt in water.
而且，氧氣不溶于水。
Oxygen does't have a smell.
氧氣是無味的。
However, it helps burn other things.
然而，它有助于其它物體的燃燒。
Can you live without oxygen.
沒有氧氣你能存活嗎？
Definitely not.
當然是不行的。
We cannot live without oxygen even for more than a few minutes.
沒有氧氣我們甚至都活不過幾分鐘。
