Before revision:  Compared with current state-of-the-art models on ST , our technique achieves  + 1.4 BLEUimprovement without using transcriptions , and + 1.2 BLEU using transcriptions.
After revision:  Compared with current state-of-the-art models on ST , our technique achieves an average improvement of + 1.4 BLEUimprovement without using transcriptions , and + 1.2 BLEU using transcriptions.