this is so sad

this is so sad This world is so cold ,so sad.. so sad this week is 可以这么倒装么? that so sad.but I know ,this is impossbile,so ,i try my best 可不可以说 she feel so sad She is so sad This world is so dirty,and who has qualified to say that sad 1.----Why is that woman so sad? so sad Only residue a little sad.,This is sad,this,heard,when,i,i,so,sensational,news,was This is so solit No is sad,is so happy什么意思