I had fondly imagined that riding a mule would be easy.是什么意思？

I had fondly imagined that riding a mule would be easy.

我曾经天真地以为骑骡子很容易.

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。

fondly

adv. 亲爱地，深情地，天真地，盲目轻信地；

例句
I often think fondly of an occasion some years ago at Covent Garden...
我时常愉快地回想起几年前在科文特花园的一个时刻。

imagined

v. 想( imagine的过去式和过去分词 )，想像，料想，误认为；

例句
I realised that I must have imagined the whole thing.
我意识到大概整件事都是我臆想出来的。

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

riding

n. 骑马，乘车，自找麻烦，自讨苦吃，区；v. 骑，驾驶( ride的现在分词)，乘坐；

例句
...a group of youths riding their motorbikes four abreast.
驾着摩托车，四个一排齐头并进的一群年轻人

mule

n. 骡子，顽固的人，杂交种动物；

例句
Be careful the mule is a vicious beast, not safe abaft the beam.
当心,骡子是一种险恶的畜牲, (站在)它后面不安全.

would

aux. 将，将要，愿意，会，打算，大概；v. (will 的过去式，用于转述)将；

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

easy

adj. 容易的，舒适的，宽裕的，从容的；adv. 容易地，不费力地，悠闲地，缓慢地；vi. 停止划桨（常用作命令）；vt. 向（水手或划手）发出停划命令；

例句
There are no easy answers to the problems facing the economy...
解决经济所面临的问题并非易事。