what's the man who helps others called 的答案是什么,用英语打出来还有what's the person who sings well and is known by the public called的答案是什么,英语打出来.长颈鹿用英语怎么说

what's the man who helps others called 的答案是什么,用英语打出来
还有what's the person who sings well and is known by the public called的答案是什么,英语打出来.长颈鹿用英语怎么说

第一个应该是指帮助别人的人 即帮助者heleper 第二个指的是明星 star,或者歌星singing star; famous singer 长颈鹿的英语是 giraffe