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  • date unknown
linked to #103188
  • date unknown
He was engaged in biological researches.
linked to #500630
  • CK
  • Nov 11th 2010, 14:46
He was engaged in biological research.
linked to #907609

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Sentence #300505

He was engaged in biological research.
彼[かれ] は[] 生物[せいぶつ] 学[がく] の[] 研究[けんきゅう] に[] 従事[じゅうじ] し[] て[] い[] た[] 。[]
Ele está comprometido à pesquisa biológica.
Він займався біологічними дослідженнями.