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radio spectrum
n.
1.the entire spectrum of electromagnetic frequencies used for communications
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radio source
radio signal
radio set
radio reflector
radio receiver
radio radiation
radio operator
radio observation
radio noise
radio news
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radio station
radio telescope
radio transmitter
radio wave
radio-controlled
radio-controlled aircraft
radio-frequency spectrum
radio-gramophone
radio-opacity
radio-opaque
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English Grammar Test is an application to help you enhance your English expertise.
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mentalism
bolted
costume
erythrina variegata
dasyurid
hansard
nasty
heterodyne oscillator
helleborus orientalis
Idiom of the Day
cover for (someone)
to make excuses for someone, to cover someone's errors
I covered for my friend when she was late for work.
1.
She didn't manage to bring the subject ________ at the meeting because there wasn't enough time
a.
down
b.
up
c.
on
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The praying mantis is the only insect that can turn its head.
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