echo
echo attenuation echo cancellation echo canceller echo canceller burst mode (ECBM) echo canceller far-end echo canceller near-end echo chamber echo delay line echo distortion echo Doppler indicator echo effect echo image echo-image echo impulse echo listener echo signal echo sounder echo-sounder echo suppressor echo wave echoer echoey echography echoic echoism echolalia echoless echolocation echometer |
echo /'ekou/
danh từ, số nhiều echoes
ngoại động từ
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