丰硕的英文：
plentiful and substantial

参考例句：

After several years of research, he at last reaped rich fruits.
经过几年的研究,他终于取得了丰硕的成果。

"Words are like leaves; And where they most abound, much fruit of sense beneath is rarely found."
言语就像树叶,在最茂密的树叶下,很难找到丰硕的理智之果

Like a scientist bent on making a discovery, he must cherish the hope that one day he will be amply rewarded.
他必须像一个专心致志进行探索的科学家那样抱有这样的希望，即终有一天，他的努力会取得丰硕的成果。

plentiful是什么意思：
a.（also plenteous)大量的，众多的，充足的，丰富的

But there is plenty of scope at that level.
然而在此水平上还是有足够的余地。

The youth has plenty of go in him.
这个年轻人干劲十足。

The camp has a plentiful supply of food.
营地食物供应充分。

Fruit is plentiful this year.
今年水果很多。

A runner needs plenty of wind.
跑者需要大量的呼吸。

substantial是什么意思：
adj. 大量的；实质的；充实的；结实的；牢固的

to hypostatize; to substantiate
使实体化

This is a substantial building.
这是个坚固的建筑物。

The architecture of this house is very substantial.
这座房子的结构很牢固。

To substantiate or authenticate with evidence.
证实用证据证明为真

His assessment is substantially correct.
他的评估大体上是正确的。