1、foundation

基础;根基

Best friends are the foundation of my life.

好朋友是我生命的支柱。

The issue strikes at the very foundation of our community.

这个问题严重影响了我们社会的基本根基。

依据;根据

The allegations were without foundation.

这些指控没有根据。

Each complaint is analysed very closely, and if it has no foundation it is rejected.

每个投诉都经过仔细分析，如果发现没有依据就会予以驳回。

基金会

the National Foundation for Educational Research.

全国教育研究基金会

2、struggle

奋力;努力;尽力

They had to struggle against all kinds of adversity.

他们不得不同一切困境做斗争。

Those who have lost their jobs struggle to pay their supermarket bills.

那些失业的人们想方设法以支付超市的账单。

斗争;奋斗;努力

Life became a struggle for survival.

生活成了一场奋力求生的斗争。

a young lad's struggle to support his poverty-stricken family.

年轻的小伙子为了支撑他贫困的家庭所作的努力