They have transshipped the cargo into a river steamer.
他们已将货物转运到一艘内河汽船里。
This is because only one boat at a time can pass through the narrow channel here, and we must wait for a river steamer going upstream.
原来崆岭滩一条狭窄航道只能过一只船，这时有一只江轮正在上行，我们只好等下来。
They then make plans to take Provis down the river in an open boat and catch a steamer bound for Hamburg.
然后他们计划将把普绕维斯带到下游，帮他找到一艘驶往汉堡的大轮船。
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