对于这样的生物来说速度并不重要，实际上它反而有害。

For such creatures speed is not important, ___indeed it is counterproductive.

确实，正是语言、政治、宗教、习俗等多种事物塑造了每个国家的文化。

___Indeed, it is a great variety of things such as language, politics, religion, customs, etc. that shape the culture of every country.

证据很有说服力，而且确实，进一步的调查证实了这个理论。

The evidence was compelling, and ___indeed, further investigation confirmed the theory.