① burn up意為“燒完,燒掉”(=burn completely),強調動作的完成。
All her books were burned up in the fire. 她全部的書都在大火中燒掉了。
The house burned up before the firemen got there. 消防隊員趕到前,房子已經(jīng)燒光了。
提示
burn up有時可表示“燒旺起來”,也可表示“消耗掉”,用作及物或不及物動詞。
He put some wood on the fire to make it burn up. 他添了些木柴,把火燒得旺些。
It burns up 100 calories an hour. 它每小時要消耗100卡的熱量。
② burn down意為“燒毀,燒成廢墟”(=burn to the ground),多指建筑物、村莊、城鎮(zhèn)等,多用作及物動詞。
The school building was burned down in the big fire. 在那場大火中,學校大樓被燒毀。
The whole village was burned down by the enemy. 整個村莊都被敵人燒毀了。