帮忙做几句中译英~

题目

帮忙做几句中译英~
1.中国无疑已经在国际事务中起到了越来越重要的作用.（play a role)
2.医生们总是告诫我们说维生素药片不能取代均衡的膳食.(subtitute)
3.迄今为止,许多地区的人们仍未意识到空气污染的危害.（recognize)
4.他去书市买许多特价书.（pick up)
5.冲入燃烧的房子里去救双胞胎姐妹的那名消防员牺牲了.（sacrifice)

答案

1.There is no doubt that China have played a more and more important role in international affairs.2.Doctors always warned us that vitamin pills can't be the subtitute of balanced diet.3.So far,many p...