15秒记一个单词（第1167个）echo

echo /'ek??/ n. 反响；回声；覆信:

击收听音频跟读 ↓↓↓ ↓↓↓ ↓↓↓

例句/词组:

There was an echo on the line and I couldn't hear clearly.

电话里有覆信,我听不清晰。

英语表明：

the reflecting of sound off a wall or inside a confined space so that a noise appears to be repeated; a sound that is reflected back in this way 反响；回声；覆信:

注：一词多义，单词一次只记一种意思即可。