基礎的英文：
a foundation; a base; a basis; the groundwork; a ground

foundation是什么意思：
n. 基础；地基；建立；基金会；粉底

That rumour has no foundation/is without foundation in fact.
那谣言没有事实根据.

The foundations have caved in.
地基下陷。

Badgers had undermined the foundations of the church.
獾在这座教堂的地基处打了洞。

base是什么意思：
n. 基部；基础；基地；碱，盐基
v. 把...放在基座上；以...为基地
adj. 基本的，基础的

the base of the standard
旗瓣基部

The player on second base was spiked by the runner on base.
在第二垒的运动员被跑垒人的钉鞋踩伤了。

Is it theresilient base mount type?
这就是弹性底座安装式 ？

basis是什么意思：
n. 基础；主要部分，基本成分

It gave a basis for reasoning.
这为推理提供了依据。

Sweeps are conducted on a monthly basis.
搜查每个月进行一次。

These workers are paid on a daily basis.
这些工人领的是日薪。