| 单词 | echo |
| 释义 | echo n. & v. --n (pl. -oes) 1. a the repetition of a sound by the reflection of sound waves. b the secondary sound produced. 2. a reflected radio or radar beam. 3. a close imitation or repetition of something already done. 4. a person who slavishly repeats the words or opinions of another. 5. (often in pl.) circumstances or events reminiscent of or remotely connected with earlier ones. 6. Bridge etc. a conventional mode of play to show the number of cards held in the suit led etc. --v (-oes, -oed) 1. intr. a (of a place) resound with an echo. b (of a sound) be repeated; resound. 2. tr. repeat (a sound) by an echo. 3. tr. a repeat (another's words). b imitate the words, opinions, or actions of (a person). Phrases and idioms echo chamber an enclosure with sound-reflecting walls. echo location the location of objects by reflected sound. echo-sounder sounding apparatus for determining the depth of the sea beneath a ship by measuring the time taken for an echo to be received. echo-sounding the use of an echo-sounder. echo verse a verse form in which a line repeats the last syllables of the previous line. Derivatives echoer n. echoless adj. Etymology: ME f. OF or L f. Gk ekho, rel. to ekhe a sound |
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