后盾的英文：
(n) support

参考例句：

a powerful and secure backing
坚强可靠的后盾

He is Napoleon's stay and Danton's resource.
他是拿破仑的支柱，丹东的后盾。

The army is one of the main props of the government.
军队是政府的主要后盾之一。

Don't worry, I'm right behind you.
别担心，我作你的后盾。

This decree has the force of law behind it.
这一裁决有法律的力量作后盾.

The former is backed up by a long and resilient classical tradition.
前者有悠久而富有弹性的古典传统作后盾。

The former is backed up by a long and resilient classical tradition
前者有悠久而富有弹性的古典传统作后盾。

He was a benefactor with collective society at his back.
他是一个捐助者，有整个社会作他的后盾。

The mainland has been and will always be the strong backing behind a stable and prosperous Hong Kong.
伟大的祖国始终是香港保持繁荣稳定的坚强后盾。

A nimble mind backed by a degree in economics gave him a firm grasp of financial matters.
机敏的头脑再加上经济学学位作后盾使他对金融问题把握非常准。

support是什么意思：
v. 支撑；鼓励；赞成；支援；供养；证实
n. 支撑；帮助；拥护；支援

support an actor
作为一个演员的配角

singular support
奇异支集

a backer; a supporter
支援者

The support for the tent is rigid.
帐篷的支柱很坚固。

a member (or supporter) of the house of Hanover.
汉诺威家族的成员或支持者。