mango的复数什么时候用mangos?

mango 芒果mango的复数some mangos举例:Please prepare some grapes, tangerines, mangos and pineapples.请准备一些葡萄、红桔、芒果和菠萝。Please prepare some famous Guangdong fruit, such as bananas, mangos, pineapples and so on.请备好一些有名的广东水果，象香蕉呀，芒果呀，菠萝等等。