So the reader knows that you didn't plagiarize.
The metaphor he tried to help but his legs were like rubber means that he was injured and that was unable to walk.
A metaphor can be understood as a figure of speech that, for rhetorical effect, directly refers to one thing by mentioning another. It may provide clarity or identify hidden similarities between two different ideas. They are generally compared with other types of figurative languages, such as antithesis, hyperbole, metonymy, and simile.
The word metaphor itself is a metaphor, coming from a Greek term which implies transference. The user of a metaphor alters the reference of the word, carrying it from one semantic realm to another. The new meaning of the word might be derived from an analogy between the two semantic realms, but also other reasons such as the distortion of the semantic realm for example in sarcasm.
Metaphors are most frequently compared with similes.
Learn more about metaphor, here:
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Perseus suggests this task, and the king agrees to shame Perseus.
B.
The king wants to rid the kingdom of the evil villain.
C.
The king's daughter is angry with Medusa and asks Perseus to slay her.
D.
Perseus wants to marry a queen from across the sea, and this is the bride price.
Perseus suggests this task, and the king agrees to shame Perseus.
O Both lived in the 1500s.
O Both were rulers of England.
O Both were rulers of Rome.
Both lived in a time of severe class division.