6 sentences

1. 他满嘴都是饭，说不出话来。

   tā mǎn zuǐ dōu shì fàn, shuō​bu​chū huà lái.

   His mouth was so full of food that he couldn't speak.

   Source: Dong Chinese Dictionary

2. 她说不出话来。

   tā shuō bù chū huà lái.

   She couldn't speak.

   Source: OpenSubtitles

3. 恐怕她这一辈子也说不出话来了。

   kǒng​pà tā zhèi yī bèi​zi yě shuō bù chū huà lái le.

   I'm afraid she might never be able to speak again.

   Source: OpenSubtitles

4. 他由于极度惊讶而张着嘴，半天说不出话来。

   tā yóu​yú jí​dù jīng​yà ér zhāng zhe zuǐ, bàn​tiān shuō bù chū huà lái.

   He stood with his mouth agape in extreme surprise, unable to speak for a long time.

   Source: Dong Chinese Dictionary

5. 他说话有些口吃，总是吃吃地半天说不出话来。

   tā shuō​huà yǒu​xiē kǒu​chī, zǒng​shì chī​chī de bàn​tiān shuō bù chū huà lái.

   He has a bit of a stutter and often struggles to speak for a while.

   Source: Dong Chinese Dictionary

6. 他听后不由得发了一会儿愕，半天说不出话来。

   tā tīng hòu bù​yóu​de fā le yī​huì​r è, bàn​tiān shuō bù chū huà lái.

   He was stunned for a moment after hearing it and was speechless for a long time.

   Source: Dong Chinese Dictionary