回响的英文：
echo
echo back
reecho
resound
resound with
reverberate
roar again

参考例句：

It was green as an emerald, and the reverberation was stunning.
它就象翠玉一样碧绿，回响震耳欲聋。

Three things soon pass away: the echo of the woods, the rainbow, and woman's beauty.
三样东西最易消逝：树林的回响，彩虹和妇女的美貌。

To produce a sound;resonate.
产生声音；回响

The whistle reverberated through the valley.
哨声在山谷里回响。

The gunshot echoed through the valley.
炮声在山谷里回响。

A clap of thunder reverberated through the house.
一声雷鸣在屋子里回响。

Our songs echoed over the mountains and seas.
我们的歌声在山海之间回响。

Cause(sth)to re-echo;disturb with noise
使(某物)反覆回响;以噪声搅扰

The words of the young woman doctor echoed in his ears.
那位年轻女医生的话在他耳畔回响。

The charm of her voice lingered in my ears.
她那美妙的声音在我耳边回响。

echo是什么意思：
n. 回声，回音；共鸣，附和；重复；仿效
v. 回响，回荡；重复，附和

The room echoed.
屋子里回荡着声音。

As the call, so the echo.
什么样的叫声就有什么样的回声(你怎样对待别人，别人就会怎样对待你)。

It is a fashion that echoes an earlier style.
这是一种仿效早期时尚的流行风潮。

back是什么意思：
n. 后面，背面，反面；背，背部；靠背；后卫
v. 支持；后退，倒退；背书；下赌注于
adj. 背部的；后面的；过去的；拖欠的.
adv. 以前；向后地；来回地；上溯

Stand back to back!
背靠背站好！

They are on the back of the menu.
它们在菜单背面。

Our seats on the train were back to back.
我们在火车上的坐位是背靠背的。

reecho是什么意思：
vi. 再反响,响遍
vt. 使回响
n. 回响,回声的回声

He was after his favorite sport of squirrel shooting, and the still solitudes had echoed and re-echoed with the reports of his gun.
他专心在打松鼠，这是他最心爱的事情，寂静的山头反复震荡着他的枪声的回音。