I naively thought that we had a friendship.

我天真地以为我们之间有友谊

I naively assumed that I would be paid for the work.

我天真地以为这活儿是有报酬的。

They naively assume things can only get better.

他们天真地以为情况只会变好。

And, naively, she showed her four thorns. Then she added.

于是，她天真地显露出她那四根刺，随后又说道。

Perhaps naively, I had expected to find that many trees had been killed.

或许是天真吧，我曾认为会发现很多已被烧死的树。

In the 1980 edition, Astro naively signed himself away to the circus owner.

在1980年版，天文天真地签署了自己的马戏团老板。