2 sentences

1. 这起离奇的失踪案至今仍是一桩悬案。

   zhè qǐ lí​qí de shī​zōng'àn zhì​jīn réng shì yī zhuāng xuán'àn.

   This bizarre disappearance case remains an unsolved mystery.

   Source: Dong Chinese Dictionary

2. 这起失踪案的真相至今仍笼罩在迷雾中。

   zhè qǐ shī​zōng'àn de zhēn​xiàng zhì​jīn réng lǒng​zhào zài mí​wù zhōng.

   The truth about the disappearance case is still shrouded in mystery.

   Source: Dong Chinese Dictionary