"we will be more than happy if you think so ."中的more

“more than ＋形容词” 相当于 very 很..
我是教师,刚讲过
More than的用法
● 陈清霖
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简简单单的“more than”,用法可多呢!
下面是些好例子：
● A.“More than＋名词”表示“多于……”、“非但……尤其是”如：
1) Modern science is more than a large amount of information.
2) Jason is more than a lecturer; he is a writer,too.
● B.“More than＋数词”含“以上”或“不止”之意,如：
3) I have known David for more than 20 years.
4) Let's carry out the test with more than the sample copy.
● C.“More than＋形容词”等于“很”或“非常”的意思,如：
5) In doing scientific experiments,one must be more than careful with the instruments.
6) I assure you I am more than glad to help you.
● D.在“More...than...”中,肯定“more”后面的而否定“than”后面的,约等于“是……而不是……”如：
7) The difference between pure linguistics and applied linguistics is more apparent than real.
8) This book seems to be more a manual than a text.
9) Catherine is more diligent than intelli-gent.
10) Hearing the loud noise,the boy was more surprised than frightened.

这里的more than 意思是：不仅仅是。
如果你也这样想的话我们能得到的不仅仅是快乐。

如果你这样想,我们将会非常高兴

按照字面死翻的话，就是：
我们会更加高兴如果你这么认为的话。
稍微润色一下就是，如果你这么认为我们就高兴不过了。深层意思有点劝诱的含义。

more than 用在这里是适合的.
这句话的意思是:如果你这样想的话,我们再高兴不过了.
这种用法和"I can agree with you more"比较相似.

more than 在这里就是一个递进的作用 可以翻译成“更加”之类的意思吧

远远超出，不止
如果你这么想的话，我们将不仅仅是幸福了（意思是可能有更大的幸福）

长见识了