Marx wrote back to say that Engels'praise had greatly encouraged him.是什么意思？

Marx wrote back to say that Engels'praise had greatly encouraged him.

马克思回信给恩格斯说,他的赞誉对自己的鼓励很大.

Marx

n. 马克思（马克思主义创始人，1818-1883）；

例句
... like a Marx Brothers routine.
像马克思兄弟风格的搞笑套路

wrote

v. 写( write的过去式 )，写信；

例句
Richard Brome, an acolyte of Ben Jonson's, wrote 'The Jovial Crew' in 1641...
本·琼森的仆人理查德·布罗姆在1641年写了《一伙快活人》。

back

n. 背，背部，背面，反面，后面，后部，（椅子等的）靠

例句
He looked back at the abject, silent girl and repeated his question.
他转过头看着这个噤若寒蝉的女孩，又重复了一遍他的问题。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

say

vi. 说， 讲，表明，宣称，假设，约莫；vt. 表明，念，说明，比方说；n. 发言权，说话，要说的话，发言权；

例句
The company say they're able to keep pricing competitive...
该公司说他们能够使定价保持竞争力。

that

det. 那个，那；pron. 那个，那；conj. 多么，如此…以至，用于某些动词、形容词和名词后，引出各种从句；adv. 不那么，那样；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

praise

n. 赞扬，称赞，崇拜，赞词；v. 赞扬，赞美，歌颂，崇拜；

例句
He deserves the highest praise for his bravery.
他的英勇行为应该获得最高的赞誉。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

greatly

adv. 大大地，非常；

例句
Any assistance you could give the police will be greatly appreciated...
您提供的任何帮助警方都将万分感谢。

encouraged

v. 鼓励( encourage的过去式和过去分词 )，支持，促进，鼓动；

例句
They were encouraged by a promise from Cardinal Winning.
红衣主教温宁的许诺使他们受到鼓舞。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。