add scoring last word in beam search
add scoring last word in beam search

lcy-seso/models,xinghai-sun/models,qingqing01/models,Superjom/models-1,qingqing01/models,xinghai-sun/models,xinghai-sun/models,kuke/models,PaddlePaddle/models,Superjom/models-1,xinghai-sun/models,lcy-seso/models,kuke/models,kuke/models,PaddlePaddle/models,PaddlePaddle/models,qingqing01/models,kuke/models,Superjom/models-1,lcy-seso/models