Acetylene is a gas. It burns with a very bright, very hot flame, and that is why people use it to cut metal and to join pieces of metal together. The usual tool is a torch that mixes acetylene with oxygen; the flame can cut steel.

Acetylene is a gasAcetylene是一種氣體。It burns with a very bright, very hot flame它燃燒起來火焰非常亮、非常熱，and that is why people use it to cut metal這就是為什麼大家用它來切割金屬，and to join pieces of metal together還有把金屬零件接合在一起。The usual tool is a torch that mixes acetylene with oxygen常用的工具是一種把acetylene和氧氣混合的噴槍；the flame can cut steel這種火焰可以切割鋼鐵。

Years ago, before electric light was everywhere, acetylene was also burned in lamps because the light is so white and strong — old miners’ lamps worked that way.

Years ago, before electric light was everywhere很多年前，在電燈還沒普及之前，acetylene was also burned in lampsacetylene也被拿來在燈裡燃燒，because the light is so white and strong因為它的光又白又強——old miners' lamps worked that way以前礦工的燈就是這樣運作的。

Though actually, the gas in a workshop cylinder is often dissolved in liquid acetone to keep it stable: the two words travel together in industry, but they are not the same substance. Acetylene is the gas; acetone is a liquid.

Though actually不過其實，the gas in a workshop cylinder工廠鋼瓶裡的氣體is often dissolved in liquid acetone to keep it stable常常溶解在液態acetone丙酮裡以保持穩定：the two words travel together in industry這兩個字在工業界常常一起出現，but they are not the same substance但它們不是同一種物質。Acetylene is the gasAcetylene是氣體；acetone is a liquidacetone丙酮是液體。

Impure acetylene can smell a little like garlic. It is a specialist word: you hear it in workshops and in chemistry, not at the dinner table.

Impure acetylene不純的acetylenecan smell a little like garlic聞起來可能有點像大蒜。It is a specialist word這是一個專業用語：you hear it in workshops and in chemistry你會在工廠和化學課裡聽到它，not at the dinner table而不是在餐桌上。