impassable

1.impassable roads; impassable problems.

能通行道路；能克服问题

2.The mud made the roads impassable.

道路因为泥泞而无法通行。

3.the narrow channels are impassable to ocean-going ships.

狭窄海峡能通行去往大洋船只。

4.There was an impassable barrier between the white race and the one which they had reduced to slavery.

在白色人种和被他们奴役种族之间有一道可逾越障碍。