an en in ,an en in,你发现了什么？,an,an,d,dan,t,tan,n,nan,g,guan,k,kuan,h,huan,j,juan,q,quan,x,xuan,en,in,en,zh,zhen,ch,chen,sh,shen,in,b,bin,p,pin,m,min,比一比，读一读，看谁分得清。,ai an aoen ei er,读下面的带调韵母。, ,
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