回声

shān gǔ zhōng xiǎng qǐ tā jiào hǎn de huí shēng

山谷中响起她叫喊的回声。

The valley echoed with her shouts.

yuǎn chù fàng biān pào de huí shēng

远处放鞭炮的回声

echo of a blast from far away

léi dá yǐ huí shēng yuán lǐ wéi jī chǔ

雷达以回声原理为基础。

Radar is based on the principle of echo.

huí shēng xiāo shī

回声消失。

The echoes faded away.

huí shēng cóng yuán xíng de qiáng bì shang chuán huí

回声从圆形的墙壁上传回。

The echo rebounded from the round wall.