Gunpowder (huo yao) is another ancient Chinese invention.

火藥是中國(guó)的一項(xiàng)古老發(fā)明。

It was invented by accident.

它的發(fā)明很偶然。

More than 1,000 years ago,people experimenting in a pharmacy made the discovery.

1000多年前，在藥房做實(shí)驗(yàn)的人發(fā)現(xiàn)了這一發(fā)現(xiàn)。

They found that if sulphur,charcoal and potassium nitrate were mixed together with a certain proportion,the mixture would explode.

他們發(fā)現(xiàn)，如果將硫，木炭和硝酸鉀按一定比例混合在一起，混合物就會(huì)爆炸。

Gunpowder changed the style of wars. The steel age ended and gunpowder-based weapons are now widely used.

火藥使作戰(zhàn)方式發(fā)生變革，從冷兵器開(kāi)始向火器發(fā)展。

More than 600 years ago,primitive guns were used in China.

600 多年前，中國(guó)便有了原始火炮。

Cannon balls were propelled by the thrust of the huo yao explosion.

利用火藥燃燒產(chǎn)生的推力發(fā)射炮彈。

Now,huo yao is also widely used in fireworks.

今日的火藥廣泛應(yīng)用于煙火。

The splendid fireworks at the Beijing Olympic Games garnered wide acclaim and admiration from the audience.

2008 年北京奧運(yùn)會(huì)上，無(wú)數(shù)綻放在空中的美麗煙火，令人驚嘆不已，帶給人全新的美感。