Fruit juice; the liquid expressed from fruit, used as a beverage or ingredient (commonly seen in labels like '100% fruit juice').
このオレンジ果汁は果汁100%だ。
This orange juice is 100% fruit juice.
サラダにレモン果汁をかけるとさっぱりする。
A squeeze of lemon juice on the salad makes it refreshing.
子どもはりんご果汁が好きだ。
Children like apple juice.