replace shoji paper tautly / repaper a shoji door properly
it's difficult to repaper a sliding door
「障子をぴんと張る」= replace shoji paper tautly / repaper a shoji door properly
「障子を張り替えるのは難しいです」= it's difficult to repaper a sliding door
ボキャブラリー
障子 = shoji door / sliding door / Japanese-style sliding door
張り替える = repaper / replace the paper
ピンと = tautly / properly / nicely / so that it's taut