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
The problem is difficult to solve.
- date unknown
linked to 206374
Hans07 - Feb 12th 2011, 14:41
linked to 752565
aleph - May 8th 2011, 14:22
linked to 882241
duran - Sep 4th 2011, 06:15
linked to 1080880
al_ex_an_der - Mar 5th 2012, 19:19
linked to 864795
al_ex_an_der - Mar 5th 2012, 19:20
linked to 797602
al_ex_an_der - Mar 5th 2012, 19:20
linked to 662357
al_ex_an_der - Mar 5th 2012, 19:20
linked to 713071
al_ex_an_der - Mar 5th 2012, 19:20
linked to 56645
al_ex_an_der - Mar 5th 2012, 19:20
linked to 713065
al_ex_an_der - Mar 5th 2012, 19:20
linked to 1044755
al_ex_an_der - Mar 5th 2012, 19:20
linked to 795949
al_ex_an_der - Mar 5th 2012, 19:20
linked to 1138235
al_ex_an_der - Mar 5th 2012, 19:20
linked to 1138241
al_ex_an_der - Mar 5th 2012, 19:20
linked to 870457

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Sentence #43622

eng
The problem is difficult to solve.

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