many fruit还是fruits
fruit 作水果解释的时候,既是可数名词，又是不可数名词，作果实种类解释的时候是可数名词。many 后面只能加复数，所以是fruits.fruits
many fruits的例句
I make salad with many fruits.
我用许多水果做沙拉。
We needn\'t buy too many fruits.
我们不必买太多的水果。
There are many fruits, too.
那里还有许多水果。
Sam And there are many fruits, too.
萨姆这里还有很多水果。
There are many fruits on the table.
桌上有各式各样的水果。