Question

英语病句修改

The reasom why they are against is that not only did we need Chinese pinyin,but also we have to study Englsih,which is easily let us make mistakes between them.
这句复合句到底该怎么修改好，才能体现一个真正主从复合句？
尽量请保持原结构

Answer 1

1. against 是介词，后面必须带有宾语，因此应该为 against it，或者用同义词 opposed、in reverse、on the contrary 代替。

2. which is easily let us make mistakes between them 是非限制性定语从句，但是which 究竟指代 English 还是 Chinese pinyin，所以建议此处应该过渡一下，改为：the letters of which (或者 whose letters) are quite similar and easily let us make mistakes between them.

全句修改：The reasom why they are opposed（或者 against it）is that not only did we need Chinese pinyin, but also we have to study Englsih, the letters of which (或者 whose letters) are quite similar and easily let us make mistakes between them.

追问

not only did we need Chinese pinyin, but also we have to study Englsih 这一个结构是否有错？
在句中需要did提前半倒装？ 不是在句首时not only 后才倒装吗？

追答

没有错，that 表语从句属于另一个单元，也就是说 not only 在表语从句的句首，不受前面句子的影响，必须倒装。

Answer 2

It is easy to make mistakes when we have to study Chinese pinyin and English simultaneously, therefore they are against this.