3 sentences

1. 我和他谈了两三天。

   wǒ hé tā tán le liǎng​sān​tiān.

   I talked to him for two or three days.

   Source: CCMatrix

2. 我每隔两三天便会往这里来。

   wǒ měi​gé liǎng​sān​tiān biàn huì wǎng zhè​lǐ lái.

   I come here every two or three days.

   Source: CCMatrix

3. 两三天后我们就会知道更多了。

   liǎng​sān​tiān hòu wǒ​men jiù huì zhī​dao gèng​duō le.

   We will know more in two or three days.

   Source: CCMatrix