靠山的英文：
backer; backing

参考例句：

Leaning against the hill and facing the sea
靠山面海

My children, my props in old age.
我的孩子们是我暮年的靠山

As the protege of the most powerful man in the country,his success was guaranteed.
他有该国最有势力的人作靠山,准能成功.

As the protege of the most powerful man in the country,his success is guaranteed.
他有该国最有势力的人作靠山，准能成功。

During the first 10 years of our business activities we were fortunate in having your bank as our sheet anchor.
我们最初经商的10年间，幸亏贵银行做我们的靠山。

backer是什么意思：
n. 支持者，赞助人

a backer; a supporter
支援者

One of the company's backer has withdrawn.
公司的赞助人之一已经退出。

The backer managed to gather a small group of curious passersby round the platform.
那人大喊大叫，设法把一小群好奇的过路人聚集在戏台周围。

Wheland was the main backer and co-worker of Pauling but he didn't agree with Pauling on the meaning of resonance.
韦兰德是鲍林的主要支持者和合作者,但在对共振意义的理解上与鲍林产生了分歧.

backing是什么意思：
n. 支持，支持者；伴奏，伴唱；背衬；后退
v. back的现在分词

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。

It happened far back in the past.
这事发生在久远的过去。

the back of a Chinese robe or jacket
后襟