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under way: Idiom Meaning and Origin

under the sun: Idiom Meaning and Origin

under the rug: Idiom Meaning and Origin

under the radar: Idiom Meaning and Origin

under the microscope: Idiom Meaning and Origin

under the gun: Idiom Meaning and Origin

under the covers: Idiom Meaning and Origin

under one’s hat: Idiom Meaning and Origin

under no circumstances: Idiom Meaning and Origin

ugly duckling: Idiom Meaning and Origin

ugly customer: Idiom Meaning and Origin

two-way street: Idiom Meaning and Origin