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| Arbeitsheft n | |||
| Arbeitsbuch n | |||
| Arbeitsmappe f (One matrix, or a collection of matrixes, that use a single model site as a data source) | |||
| Übungsbuch n | |||
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| Arbeitshefte m | |||
| English thesaurus | |||
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| .wkb (file name extension, WordPerfect) | |||
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workbook : 3 phrases in 2 subjects |
| Health care | 1 |
| Microsoft | 2 |