爸爸姓林怎么说英语

In English, the word "爸爸" (bàba) means "dad" or "father". If someone's last name is 林 (lín), then you could refer to them as "Mr. Lin" or "Lin's father". For example, you could say "林先生是我的爸爸" (Lín xiānshēng shì wǒ de bàba), which means "Mr. Lin is my father".