We use vinegared rice to stop the sushi from drying out and going off.
We use vinegared rice when we make sushi to stop the fish from drying out and spoiling.
「寿司には乾燥と傷み防止のため、酢飯を使う」＝ We use vinegared rice to stop the sushi from drying out and going off. / We use vinegared rice when we make sushi to stop the fish from drying out and spoiling.
ボキャブラリー
use ＝ 使う
vinegared rice ＝ 酢飯
to stop/to prevent ＝ ～防止のため
dry out ＝ 乾燥する
go off/spoil ＝ 傷む
when we make sushi ＝ 寿司を作る時
イギリス 
