the facts, ideas, or things from which something can be developed

基础; 根据; 基点:

Their claim had no basis in fact (=it was not true) .

他们的说法没有事实根据。

Bread forms the basis of their daily diet.

面包是他们日常饮食中的主食。

The video will provide a basis for class discussion.

录像将为课堂讨论提供基本内容。

on the basis of sth, because of a particular fact or situation

在某事的基础上; 根据某事:

discrimination on the basis of sex

性别歧视

on a regular / daily / weekly etc basis, every day, week etc

经常/每天/每周等:

I'm saving money on a regular basis.

我经常存点钱。

on a voluntary / part-time / temporary etc basis, a system or agreement by which someone or something is VOLUNTARY etc

自愿性质/以兼职的形式/临时性地等:

Nurses are employed on a full-time basis.

护士是全职的。