Since 1949,when the People’s * was founde,it is not the first time for China to develop its western part

问题描述:

Since 1949,when the People’s * was founde,it is not the first time for China to develop its western part.从上句可知,中国是在什么时候进行第一次发展西方地区

before 1949不应该是in 1949么自从1949, / 当*成立时,中国已不是第一次发展了。这样断句不行么就是这么断的when the People’s * was founde插入语 解释说明说实话 我赶脚句子语义不通那把“当*成立时,中国已不是第一次发展了。”看做是一个从句呢意思就是1949年是第一次发展,而当*成立时,中国发展很多次了