Best results are achieved from one natural language family

Translators of the high quality are only obtainable from first-class raw materials and constant and disciplined training. They can deal with:
• Translating from one natural language into another;
• Problems of ambiguity in the source text;
• Problems to select the most appropriate word or phrase in the target language;
• Problems of lexical and structural mismatches;
• Multiword’s Units: Idioms and collocations;

Of course the best results could be achieved only from one natural language family. A language family is a group of languages related by descent from a common proto-language. An accurately identified family is a phylogenetic unit; that is, all its members derive from a common ancestor. Many languages are known to belong to language families; for many others, however, family relationships are not known and only tentatively proposed (2).



(2) http://en.wikipedia.org/wiki/Image:Languengl.gif