The Smiths thought of some advice that they went traveling on foot together.改错.
问题描述：
The Smiths thought of some advice that they went traveling on foot together.
改错.
答
The Smiths thought of some advices about they went traveling by foot together.
史密斯夫妇想起一些关于他们一起徒步旅行的忠告。
答
The Smiths thought of some advice that they go traveling on foot together.