groud

ground ：a reason for what you say or do, or for being allowed to say or do something, 理由，根据，确凿的证据 。ground表示理由时，一般都会以复数形式 grounds 出现。

She has valid grounds for accusing him of sexual harassment.

Gene editing has drawn widespread public criticism on ethical grounds.

ground 常和介词 on 搭配构成短语 on the grounds of/that， 表示基于…的理由，以…为根据。

Mr Shi believes that if elite universities select students on the grounds not just of their test scores, but also of their intellectual maturity and social responsibility, this will influence the way pupils are taught at school, and change the way they think.

1.《牛津英语搭配词典》中ground作为名词表示“理由”时的常用搭配

valid/ ethical grounds

have/provide/offer …grounds for / a ground for

there is no ground for

on  …grounds 

on the grounds of

2.翻译：

因为英语不够好，他拒绝了邀请。

He refuse the invitation on the grounds of inadequate English.

（参考翻译：He turned down the invitaiton on the grounds that his English was not good enough. 或者 On the grounds of inadequate English, he declined the invitation. ）

3.造句

I refused the job offer on the grounds of much less appealing salary.