由于这段河流太浅，我们不得不把独木舟抬过陆地一段距离。

The river was too shallow here, so we had to ___portage our canoes overland for a while.

这批货物的运输费用比我们预计的高了很多。

The ___portage for this shipment was much higher than we expected.

由于河流湍急，我们只能选择这条陆路运输路线把独木舟运到下游。

Because of the rapid river, we had to use this ___portage to carry our canoe downstream.