two kilos of mango 还是two kilos of mangoes能说出为什么就更好了!

two kilos of mango 还是two kilos of mangoes能说出为什么就更好了! We want two kilos of( ),please two kilos. 2公斤苹果用英语怎么说?是two kilos of apple还是two kilos of apples? There are two kilos of beef on the plate.(对two kilos of beef 提问） I’d like two kilos of rice.（对划线部分提问） two kilos of rice I'd like to have two kilos of rice.对two kilos of 提问 I would like two kilos of fish .对two kilos of 提问.....you like? I'd like two kilos of fish对two kilos of提问 I would like — two kilos of— fish two kilos of这里 （画线提问） I'd like two kilos of fish 对two提问 l'd like two kilos of fish 对 two kilos提问 关于kilo的英语题four kilos of meat,因为meat不可数，所以不存在单复数问题。那么芒果呢？four kilos of mango还是mangoes? kilos of Two kilos of apples中,apples为什么要加s? Do you need buy two kilos of potatoes? two kilos of meat 后面用is还是are two kilos of salt 后面跟are 还是is?