他善良友好乐于助人用英语怎么说

"He is kind, friendly, and willing to help others" is how you would say it in English. This phrase comes from the adjectives "kind" (善良的), "friendly" (友好的), and "willing to help" (乐于助人的) being used to describe a person.
Here are some example sentences in English and their translations in Chinese:
He is always willing to help his friends in need. 他总是乐于帮助朋友的需要。
She is known for her kind and friendly nature. 她以善良友好的性格而闻名。
He is a very helpful person, always willing to lend a hand. 他是一个非常乐于助人的人，总是乐意伸出援手。