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The hidden power of smiling - vocabulary
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to make something weaker so it is less effective
impair
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between galaxies
intergalactic
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polite and respectful
courteous
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one thousand dollars or pounds
a grand
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improving
enhancing
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believed that something was a result of a particular action
attributed (smiles) to
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to make a connection (with something) that will give you an advantage
tap into (something)
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sudden strong increases of energy
jolts
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causing similar behaviour in others
contagious
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the state of being healthy and happy
well-being
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to experience something as a result of your actions
incur
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examinations done under the same conditions
standardized tests
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able to do something well
competent
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discovered something by accident
stumbled on
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