tube,use,huge,cute,us,sun,mum,duck,tub,mule,cup,bus,的U分别是长音还是短音?十万火急!
问题描述：
tube,use,huge,cute,us,sun,mum,duck,tub,mule,cup,bus,的U分别是长音还是短音?十万火急!
答
tube,use,huge,cute,us,sun,mum,duck,tub,mule,cup,bus,的U分别是长音还是短音?十万火急!