2 sentences

1. 她被卖身为奴。

   tā bèi mài​shēn wéi nú.

   She was sold into slavery.

   Source: OpenSubtitles

2. 旧时代很多穷人被迫卖身为奴。

   jiù shí​dài hěn​duō qióng​rén bèi​pò mài​shēn wéi nú.

   In the old days, many poor people were forced to sell themselves into slavery.

   Source: Dong Chinese Dictionary