2 sentences

1. 面对老友的离去，他心中充满了感伤。

   miàn​duì lǎo​yǒu de lí​qù, tā xīn​zhōng chōng​mǎn le gǎn​shāng.

   His heart was filled with sorrow at the departure of his old friend.

   Source: Dong Chinese Dictionary

2. 望着满地的落叶，他心中徒增几分感伤。

   wàng zhe mǎn​dì de luò​yè, tā xīn​zhōng tú zēng jǐ fēn gǎn​shāng.

   Gazing at the fallen leaves everywhere, he felt an added sense of melancholy.

   Source: Dong Chinese Dictionary