Practice Chinese pronunciation and sentence melody by trying to get as close to the native speaker as possible. One school of learning languages says starting learning pronunciation first (before you know a lot of vocab or grammar), will save you a lot of time later that you would otherwise have to spend on unlearning wrong pronunciations patterns. You will see a sentence in Chinese characters. If you think you know how they are pronounced, you can record yourself right away. If not, you can let the app show you the pronunciation in pinyin and if you want the sentence's translation.