用英文简单回答下 What’s the difference between letters and emails?

用英文简单回答下 What’s the difference between letters and emails? what is the difference between letters and emails what`s the difference between England and China?用一些简单的词就OK~口 请用英语回答：What's the difference between part of speech and memb what's the difference between across and between? what‘s the difference and similarity between fiction and non what's the difference between China's and Chinese? what's the difference between the words "bible" and "scriptu what's the difference between "sit" and "seat"? what's the difference between peanut butter and jam? what's the difference between sport and sports what's the difference between Chinese novels and western nov