the new hight-speed Hangzhou-shanghai line started running last year.it cost
问题描述：
the new hight-speed Hangzhou-shanghai line started running last year.it cost
合并为定语从句的句子
答
你确定给的句子是正确的么?是这个么?the new high-speed Hangzhou shanghai line started running last year.it cost about 29 billion yuanThe new high-speed HangZhou ShangHai line which costs about 29 billio...