Q: Sentence (1) The body lay in a pool of blood.
Sentence (2) The pools of Solomon.. Word: pool.
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A: the same meaning

Q: Sentence (1) Rectify a curve.
Sentence (2) Rectify alternating current.. Word: rectify.
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A: different meanings

Q: Sentence (1) Rub my hands.
Sentence (2) I rubbed the cloth over the glass.. Word: rub.
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A:
the same meaning