For the past five years, Paula Smith, a historian of science, has devoted herself to re-creating long-forgotten techniques.

在过去的五年里，科学史学家宝拉·史密斯致力于重现人们遗忘已久的技术。

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Smith's daughter, Paula Smith, said two life terms were not appropriate for Johnson's role.

WSJ: Man convicted of murder as teen resentenced

"It's even hard now to raise money in town for band trips, or for the Relay for Life, " Paula Smith said.

CNN: A message to the candidates: 'This is not a game'

"It seemed safe, " Paula Smith said.

CNN: A message to the candidates: 'This is not a game'