\node[anchor=north,font=\scriptsize,align=center] (w2) at ([yshift=-2em]decoder.south){\scriptsize\bfnew{There exist different}\\\scriptsize\bfnew{opinions on this question .}};
\node[anchor=north,font=\scriptsize,align=center] (w2) at ([yshift=-2em]decoder.south){\scriptsize\bfnew{There exist different}\\\scriptsize\bfnew{opinions on this question .}};
\node[anchor=north,font=\scriptsize,text=gray] (w3) at ([yshift=0.6em]w2.south){\scriptsize\bfnew{(复制源语言句子)}};
\node[anchor=north,font=\scriptsize,text=gray] (w3) at ([yshift=0.6em]w2.south){\scriptsize\bfnew{(复制源语言句子)}};
\node[anchor=south,font=\scriptsize,align=center] (w4) at ([yshift=1.6em]box2.north){\scriptsize\bfnew{on this question}\\\scriptsize\bfnew{There exist different opinions .}};
\node[anchor=south,font=\scriptsize,align=center] (w4) at ([yshift=1.6em]box2.north){\scriptsize\bfnew{on this question}\\\scriptsize\bfnew{There exist different opinions .}};
\draw[->,very thick]([xshift=-1.4em]trans.west) to (trans.west);
\draw[->,very thick]([xshift=-1.4em]trans.west) to (trans.west);
\draw[->,very thick](trans.east) to ([xshift=1.4em]trans.east);
\draw[->,very thick](trans.east) to ([xshift=1.4em]trans.east);
\node[anchor=east] (de1) at ([xshift=4.8cm,yshift=-0.1em]trans.east) {\begin{tabular}{l}{\normalsize{译文:}}{\normalsize{一个\ \;女孩\ \;从\ \;{\red{河床}}}}\end{tabular}};
\node[anchor=east] (de1) at ([xshift=4.5cm,yshift=-0.1em]trans.east) {\begin{tabular}{l}{\normalsize{译文:}}{\normalsize{一个/女孩/从/{\red{河床}}/}}\end{tabular}};
\node[anchor=south] (de2) at ([xshift=-0em,yshift=-1.5em]de1.south) {\begin{tabular}{l}{\normalsize{上\ \;跳下来\ \;。}}\end{tabular}};
\node[anchor=south] (de2) at ([xshift=-0em,yshift=-1.5em]de1.south) {\begin{tabular}{l}{\normalsize{上/跳下来/。}}\end{tabular}};