How do you say juice in English?

The English term for "juice" is "fruit juice".

果汁用英文怎么写？

juice英[d?u:s]美[d?us] n.果汁;肉汁;胃液; [例句]Thetwocombinedheldjustafifthofchina'sjuicemarket. 这两家公司加在一起只占中国果汁市场的五分之一。