AI 服务暂时不可用，以下为来源正文，待恢复后补全翻译。
A memoir of piloting the Mississippi Hard The hardest of the ten, because the first half has real detail and something close to the right swagger. Watch the order of operations. It states the conclusion, that nothing on the lower river is leisurely and even fuelling is contrived so the boat need not stop. Then Twain demonstrates it by making you wipe your glasses, put them on, and find the wood already gone. Models announce first and illustrate second, or announce and never illustrate at all.