In the past, it was thought that Tongyang canal is the northern demarcation line of the Yangtzi River Delta in nature.

过去人们一直认为长江三角洲的自然北界是通扬运河。

youdao

In the past, it was thought that Tongyang canal is the northern demarcation line of the Yangtzi River Delta in nature.

过去人们一直认为长江三角洲的自然北界是通扬运河。

youdao