Sorry, I don't speak Chinese, but maybe you can understand English?
Always learn the article together with the noun. Don't learn "Tisch", learn "der Tisch".
Some endings always take the same article (http://www.mein-deutschbuch.de/lernen.php?menu_id=52). But for most nouns, you just have to learn it by heart.
7 de octubre de 2014
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