3 sentences

1. 他孤苦伶仃，身边一个亲都没有。

   tā gū​kǔ​líng​dīng, shēn​biān yī gè qīn dōu méi​yǒu.

   He is all alone, without a single relative by his side.

   Source: Dong Chinese Dictionary

2. 这个孩子失去了父母，变得孤苦伶仃。

   zhè​ge hái​zi shī​qù le fù​mǔ, biàn de gū​kǔ líng dīng.

   The child lost his parents and was left all alone and helpless.

   Source: Dong Chinese Dictionary

3. 看到那个孤苦伶仃的老人，我不禁感到一阵心酸。

   kàn​dào nà​gè gū​kǔ​líng​dīng de lǎo​rén, wǒ bù​jīn gǎn​dào yī zhèn xīn​suān.

   Seeing that lonely old man, I couldn't help but feel a pang of sadness.

   Source: Dong Chinese Dictionary