1、对
Be harmful to; be ruinous to对..有害 That is an atrocious, a ruinous epistle这封信真是糟糕透顶，简直是要命！
2、有害的
... be fond of 喜爱的,爱好的 be harmful to 有害的 be known as 被认为是,被称为 ...
3、对…有害
...有害的, 伤害的 harmful对…有害 be harmful to不利的,有害的 adverse ...
4、对……有危害
...be familiar to 为（某人）所熟悉be harmful to 对……有危害be open to 对……开放，易受到 be opposed to 反对，不赞成 ...
be very harmful to对危害很大
be harmful to sb对某人有害
to be harmful to有害;对;对．．．有害
be harmful to sth对…有害
be harmful to unity有碍团结;详细翻译
be harmful to health有害健康
be harmful to unity detail有碍团结
be harmful to the environment对环境有害