help的形容词副词名词是？
helpful adj. 有帮助的；有益的；
helpfully adv. 有益地；有用地；
helpfulness n. 有益；有助
She made helpful comments on my work.
她对我的工作提出了有益的意见。
Role-play is helpful in developing communication skills.
角色扮演有助于提高沟通技巧。
Sorry I can\'t be more helpful.
对不起，我帮不上更多的忙。
\'Let me explain!\' he added helpfully.
He gave his name and then helpfully spelled it.
他说出了他的名字，然后又热心地把它拼读了出来。
She helpfully suggested that I try the local library.
她很热心地建议我试试本地的图书馆。