Péngyou / zài / wǒ / zuì / kùnnan / de / shíhou / bāngzhù / le / wǒ， / zhè / fèn / qíngyì / ràng / wǒ / juéde / hěn / nuǎnxīn。

朋友在我最困难的时候帮助了我，这份情谊让我觉得很暖心。

My friend helped me when I was having the hardest time, and that friendship was very heartwarming.