build up friendship什么意思?

build up friendship什么意思? it takes a lot to build up friendship.的意思 To lose a friend is easy but to build up a friendship is hard的汉语怎么说 build up pack up build up怎么翻译 build up 什么意思? build up的用法 build it up build oneself up build-up area build up energy是什么意思 build sb up造句 build up one's build up my Build up your vocabulary. build up a build sb up和build oneself up 的语境区别 build me up与build myself up一样吗如题!