回波
echo (e.g. radar)
✍️ Practice Writing the Full Phrase
📖 Additional Information
English Phonetic:
'ekәu
Detailed Definition:
n. the repetition of a sound resulting from reflection of the sound waves\nn. (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained\nn. a reply that repeats what has just been said\nn. a reflected television or radio or radar beam