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
Mathematics is an interesting subject.
- date unknown
linked to 128781
- date unknown
linked to 143548
Guybrush88 - Feb 20th 2011, 23:33
linked to 763682
Samer - Apr 4th 2011, 17:00
linked to 824080
duran - Sep 15th 2011, 19:54
linked to 1107531
sharptoothed - Dec 30th 2012, 08:42
linked to 2112557
BraveSentry - May 22nd 2013, 17:06
linked to 2444479

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Sentence #271019

Mathematics is an interesting subject.

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