So, that can erode the soils.

所以，这会侵蚀土壤。

No water seepage exiting the downstream face of  the embankment or eroding soil was evident in the time leading up to the breach, ruling this  mechanism out as the main cause of failure.

在决口之前， 没有明显的水从路堤下游面渗出， 也没有侵蚀土壤，因此排除了这种机制是失败的主要原因。