Before revision:  This method is verified in two mainstream datasets . Experiments show that our proposed  improves the previous state-of-the-art methods by big margins.
After revision:  This method is verified on three mainstream datasets, including Augmented LibriSpeech English-French dataset, TED English-German dataset, and TED English-Chinese dataset . Experiments show that our proposed  improves the previous state-of-the-art methods by big margins.