2 sentences

1. 或许我只是瞎猜。

   huò​xǔ wǒ zhǐ​shì xiā​cāi.

   Maybe I was just guessing.

   Source: OpenSubtitles

2. 我只是瞎猜的，你别太当真。

   wǒ zhǐ​shì xiā​cāi de, nǐ bié tài dàng​zhēn.

   I was just making a blind guess; don't take it too seriously.

   Source: Dong Chinese Dictionary