An adverbial phrase<span> is two or more words that act as an </span>adverb<span>. It can modify a verb, </span>adverb<span>, or adjective and can tell “how”, “where”, “why”, or “when.”
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The answer to your question is The tone and style of your essay.
Have a nice day and good luck!!
The extended simile in the passage is: As when a circling wall the builder forms, Of strength defensive against wind and storms, Compacted stones the thickening work compose, and round him wide the rising structure grows.
A simile is a figure of speech that compares one thing from another thing of a different kind. It adds meaning to the text because it emphasizes the:
a. Strength of the wall - which is likened to being a barrier that can be used as protection from wind and storms.
b. Size of the structure - which was built with hours of hard work and construction materials that can withstand such great forces of war.