Perfect Meaning and Grammar: The meaning of the translation is completely consistent with the source, and the grammar is correct.
Most Meaning Preserved and Few Grammar Mistakes: The sentence retains most of the meaning of the source sentence. It may have some grammar mistakes.
Some Meaning Preserved: The sentence preserves some of the meaning of the source sentence but misses significant parts. Grammar may be poor.
Nonsense/ No meaning preserved:Nearly all information is lost between the translation and source. Grammar is irrelevant.