it'll       
uk/ˈɪt.əl/ us/ˈɪt̬.əl/
 (it will的缩略形式)
short form of it will
  It'll be hard to find someone to help. 很难找到人帮忙。 
 - More examples
 - Thousands of people have invested in the building society, hoping that it'll become a public company.
 - This bag's too full - it'll burst if you put any more in it.
 - I've put your shirt in the tumble drier, so it'll soon be dry again.
 - Don't force her to talk about the incident yet, if you think it'll upset her.
 - I think it'll be difficult to find another secretary as good as Joan.