6 sentences

1. 窃以为此计不可行。

   qiè yǐ​wéi cǐ jì bù kě​xíng.

   In my humble opinion, this plan is not feasible.

   Source: Dong Chinese Dictionary

2. 你提出的要求断不可行。

   nǐ tí​chū de yāo​qiú duàn bù kě​xíng.

   The request you made is absolutely unfeasible.

   Source: Dong Chinese Dictionary

3. 大体上，这个计划是可行的。

   dà​tǐ​shàng, zhè​ge jì​huà shì kě​xíng de.

   In general, this plan is feasible.

   Source: Dong Chinese Dictionary

4. 这个方案在技术上是可行的。

   zhè​gè fāng'àn zài jì​shù shàng shì kě​xíng de.

   This plan is technically feasible.

   Source: Dong Chinese Dictionary

5. 理论上可行，但实际上很难做到。

   lǐ​lùn shàng kě​xíng, dàn shí​jì​shàng hěn nán zuò​dào.

   It's feasible in theory, but difficult to do in practice.

   Source: Dong Chinese Dictionary

6. 你觉得时间旅行是怎么变得可行的？

   nǐ jué​de shí​jiān lǚ​xíng shì zěn​me biàn de kě​xíng de?

   How do you think time travel became possible?

   Source: OpenSubtitles