The best feedback I ever received was in response to a translation for a new agency several years ago. The proofreader had a problem with the terminology I had used, explaining that the most authoritative reference in this field was this particular lexicon which I had obviously not used. I was fairly new to the field, so I immediately went out and got my hands on this holy grail of terminology, which has been a life-saver on more than a few occasions since. So even though the critique stung a bit, I am grateful for it because it told me something I really needed to know in a straightforward, non-offensive way.
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