On my iPhone the app says "Translation. See the English, know the Chinese."
What do you mean by "know the Chinese"? For instance, the first English word was "have". I know that is you (Pinyin), I can recognize 有 (Hanzi) when I see it, I know it when I hear it, but my tone might have been wrong if I were to say it (which I would do as the screen displayed "have" in English).
What is the criteria in "Translation" mode for "I know it."