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término		definición
funnel empezar lección		move or direct something through a narrow space
wear and tear empezar lección		the damage that comes from ordinary everyday use
we're doomed! empezar lección		(informal) used to say that we are destined to be defeated or to fail
downward spiral empezar lección		situation which continuously gets worse and worse
redundancy in the system empezar lección		having more than one way to achieve an outcome so that a backup method can take over if other methods fail
pinna The doctor examined the child’s pinna to check for signs of infection or injury. empezar lección		the outer, visible part of the ear that collects sound and directs it into the ear canal.
vibrate sympathetically When the singer hit a high note, the glass vibrated sympathetically. empezar lección		When one object starts to vibrate because another object nearby is vibrating at the same frequency. It’s also called sympathetic vibration or resonance.
redundancy The airplane has redundancy in its controls to ensure safety if one system fails. empezar lección		extra components or systems added to increase reliability
Computation During the exam, her brain was doing so much computation that she felt exhausted afterwards. empezar lección		doing calculations or processing information

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