I have read a related post against a user who just translated a whole article without using the quote feature but providing link for the original article and I think even DT members didn't counted it as plagiarism as he have linked the original article. So I think using Google translate as well as editing what has already been translated is good as long as you will be crediting the original article will be counted as a translation kind of thread. Maybe highlighting or noting it as a translated article will avoid any confusion that you are trying to plagiarize a content.