如果你喝的是井水，最好是对水中的大肠型细菌进行测试。

However, if you drink from a well, it's a good idea to have your water tested for coliform bacteria.

youdao

如果你喝的是井水，最好是对水中的大肠型细菌进行测试。

However, if you drink from a well, it's a good idea to have your water tested for coliform bacteria.

youdao