英语The relationship between them is being improved. 这句话为什么用is being,怎么不用has being呢?

a relationship和the relationship的区别 revive the relationship work on the relationship the mutualism relationship 、 C与A,B之间的关系的研究.把它翻译成英语怎么翻译?the study of the relationship between . 求一篇 the ways to maintain the relationship between...英语对话 mediate the relationship是什么意思啊 求英语作文What’s the relationship between sports and health?写一篇英语口语 小短文 What’s the relationship between sports and health?120字左右 用英语回答What is the ideal relationship between parents and their children in your view? what is the relationship between international business and culture?用英语回答, 英语短文what are the important factors that contribute to a stable love relationship? What is the relationship between present value and future value?用英语回答哦 求英语作文：What is the ideal neighbourhood relationship to you? 求英语作文The relationship between University and society需要参考 求英语作文：What is the ideal neighbourhood relationship to you? 请问这句英语该如何翻译：Gets too serious about the relationship too quickly 谢谢! How to deal the relationship with environment?为题,写一篇60字的英语作文. it cioses the relationship of china with other countries 的英语的中文...