---there is a good deal of truth in this idea.1 as a matter

It would seem there is a good deal of truth in this idea.
强调句,还原：There seemed a good deal of truth in this idea.
as a matter of fact 事实上
in the event 万一,结果,到头来
surprisingly enough 足够惊奇的
翻译：这个主意中似乎有很多的真理.
其实,重点是,另外3个,后面都要加逗号.
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再问： 为什么要加逗号
再答： 固定用法，就像However,。。。。。