prematurely [ˌpriməˈtjʊrlɪ]

例句:

• Danny was born prematurely, weighing only 3lb 3oz.
  丹尼是早产儿，生下来时体重只有3磅3盎司。
  来自柯林斯例句
• The law could arrest the development of good research if applied prematurely.
  如果草率施行，该法律将会阻滞高质量研究的进展。
  
• The heavy rain driving against the windows made the room prematurely dark.
  暴雨敲打着窗户，房间早早就暗了下来。
  
• But I think it's been written off prematurely.
  来自WSJ
• The brilliant and original young psychiatrist scythed down so prematurely.
  来自H. McLeave
• They have also been shown to prevent arteries ageing prematurely.
  来自THETIMES