Poetry always loses (something) in translation.
诗歌一经翻译总有所失.
The teacher laid emphasis on the precision of the translation from the outset.
老师从一开始就强调翻译准确性。
This is a book, which I dare say, is unequaled as far as translation practice is concerned.
就翻译训练而言我认为这是一本无出其右的好书。