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.

Logs

- date unknown
He studies biology very hard.
- date unknown
linked to 15381
- date unknown
linked to 111533
ChickenKiev - Sep 6th 2010, 06:43
linked to 500623
alexmarcelo - May 25th 2011, 03:02
linked to 907614
Guybrush88 - Jun 10th 2011, 18:58
linked to 933175
Guybrush88 - Jun 10th 2011, 18:58
linked to 933176
Guybrush88 - Jun 10th 2011, 18:58
linked to 933178
Guybrush88 - Jun 10th 2011, 18:58
linked to 933179
duran - Jan 14th 2012, 16:31
linked to 1360758
Balamax - Sep 6th 2012, 22:32
linked to 1822266
paul_lingvo - Jul 9th 2013, 22:48
linked to 2580479

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Sentence #292150

eng
He studies biology very hard.

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