疑问

如果你有什么疑问，可以随时问我。

Rúguǒ nǐ yǒu shénme yíwèn, kěyǐ suíshí wèn wǒ.

If you have any questions, you can ask me at any time.

对于这个计划，我还有一些疑问。

Duìyú zhège jìhuà, wǒ hái yǒu yīxiē yíwèn.

I still have some doubts about this plan.

毫无疑问，他是最合适的人选。

Háo wú yíwèn, tā shì zuì héshì de rénxuǎn.

Without a doubt, he is the most suitable candidate.