 This workpresents  pre-training and fine-tuning as a simplified but more effective approach of differentiating between the two data.
<meaning-changed>  This workpresents  pre-training and fine-tuning as a simplified but more effective approach of differentiating between the two data.
 This workpresents -- the synthetic and authentic parallel data are treated as out-of-domain and in-domain data respectively and, through pre-training and fine-tuning as a simplified but more effective approach of differentiating between the two data.