burn(sth)up
—phrasal verbwithburnverbuk/bɜːn/us/bɝːn/burntorburned|burntorburned
B2
todestroysomethingcompletelywithfireorheat, or to bedestroyedcompletelybyfireorheat
烧光，烧尽
Meteorites oftenburnup in theatmospherebefore theyreachtheground.流星常常在到达地球之前就已经在大气层中燃尽了。