people who don;t do what they say they will是什么意思?

people who don;t do what they say they will是什么意思? People don't say exactly what they mean. Few people like such books,( A do they B.will they C.don't t I don't know!Why people will cry when they sad? Why do they Don't worry about what people think;they don't do it very of people also don't say exactly what they mean?这是什么从句啊,(请说明原因) no matter how the others say,what they do,i don't care.now,i What do people often say when they meet at Christmas?是什么意思 They don‘t know what they can do.(同义句) They don‘t know what they live longer than people who don"t 翻译They live longer than people who don't They live longer than people who don't