2 sentences

1. 谜底立即被揭开了。

   mí​dǐ lì​jí bèi jiē kāi le.

   The mystery was solved immediately.

   Source: CCMatrix

2. 昨日晚间，谜底终于揭晓。

   zuó​rì wǎn​jiān, mí​dǐ zhōng​yú jiē​xiǎo.

   Last night, the mystery was finally revealed.

   Source: CCMatrix