2 sentences for 调换 (diào​huàn)

1. 他调换了血液样本。

   tā diào​huàn le xuè​yè yàng​běn.

   He switched the blood samples.

   Source: AI Challenger 2017

2. 他们肯定是调换了衣服。

   tā​men kěn​dìng shì diào​huàn le yī​fu.

   They must have switched clothes.

   Source: OpenSubtitles