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An airplane flying with a constant speed flies from a warm air mass into a cold air mass.The Mach number will
Negative Situation
An adverse or undesirable circumstance or event.
Euphemism
A mild or indirect word or expression used to replace one considered too harsh or blunt when referring to something unpleasant or embarrassing.
Negative Connotations
Words or phrases that evoke negative feelings or associations.
Euphemisms
Words or phrases that express a thought in milder terms.
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