2 sentences

1. 我们可以通过置换这些字母来组成新词。

   wǒ​men kě​yǐ tōng​guò zhì​huàn zhè​xiē zì​mǔ lái zǔ​chéng xīn cí.

   We can form new words by rearranging these letters.

   Source: Dong Chinese Dictionary

2. 活泼金属可以将不活泼金属从其盐溶液中置换出来。

   huó​po jīn​shǔ kě​yǐ jiāng bù huó​po jīn​shǔ cóng qí yán róng​yè zhōng zhì​huàn chu​lai.

   Active metals can displace inactive metals from their salt solutions.

   Source: Dong Chinese Dictionary