動詞 burn down:

1. burn completely; be consumed or destroyed by fire
   同義詞：burn up, go up
2. destroy by fire
   同義詞：burn, fire

1. Don't leave the gas on you might burn the house down.
   別忘了關煤氣爐--不然會把房子燒掉的。
2. Rumor has it that the factory burned down.
   謠傳那家工廠被大火燒毀了。
3. The room grew colder as the fire burnt down.
   隨著爐火逐漸減弱，房間越來越冷。
4. The house burnt down in half an hour.
   那所房子在半小時之內就被焚為平地。