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treacherously
01
предательски
in a highly dangerous or risky manner
02
предательски
in a disloyal and faithless manner
Пример
The river flowed treacherously fast, creating dangerous currents for swimmers.
The mountain trail led treacherously along narrow cliff edges, requiring careful navigation.
The sailors navigated treacherously through the stormy waters, facing high waves and strong winds.
The icy road conditions made driving treacherously slippery and hazardous.