About unapproved sentences

You may see some sentences in red. These sentences are not approved by Tatoeba's community. They raise copyright issues or are otherwise problematic. If you are a contributor, please avoid translating them.


- date unknown
They are engaged in cancer research.
- date unknown
linked to 98113
nickyeow - Jan 16th 2010, 15:58
linked to 349560
Hellerick - Jun 24th 2010, 02:53
linked to 410451
duran - Jul 11th 2012, 11:27
linked to 1681687
sacredceltic - Aug 20th 2012, 17:54
linked to 1788516
sacredceltic - Aug 20th 2012, 17:55
linked to 1788520

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Sentence #305589

They are engaged in cancer research.

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