Before revision:  However, it is often overlooked that the decoder only has a single view of the source sequences, that is , the representations generated by the last encoder layer , which is supposed to be a  global view of source sequences . Such implementation hinders the decoder from concrete, fine-grained , local source information .
After revision:  However, it is often overlooked that the decoder only has a single view of the source sequences, that is , the representations generated by the last encoder layer , which is supposed to be a global view of source sequences , such practice keeps the decoders from concrete, fine-grained , local source information .