He was acting on a common trope in literature: the collapse of our technology and a return to old ways.
在文学中，他已经成为一个常见的比喻：技术的崩溃，以及古老方式的回归。
And though the image of a team of dogs pulling a sled is still a common trope in Alaskan imagery, reaching remote villages today requires a bit less exposure to the elements.
尽管狗拉雪橇仍是阿拉斯加的招牌形象，今天要到遥远的乡村去，还是需要能遮风挡雨的交通工具。
A metaphor is a trope or figure of speech in which an implied comparison is made between two unlike things that actually have something in common.
暗喻是将两种有共同点的不同事物进行隐晦比较的修辞手法。
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