3 sentences

1. 我想提出一个替代方案。

   wǒ xiǎng tí​chū yī gè tì​dài fāng'àn.

   I'd like to propose an alternative.

   Source: OpenSubtitles

2. 这种新材料可以替代塑料。

   zhè zhǒng xīn cái​liào kě​yǐ tì​dài sù​liào.

   This new material can replace plastic.

   Source: Dong Chinese Dictionary

3. 她要做一个关于替代能源的演讲。

   tā yào zuò yī gè guān​yú tì​dài néng​yuán de yǎn​jiǎng.

   She's giving a talk on alternative energy.

   Source: OpenSubtitles