1、enable

使能够;使有机会

The new test should enable doctors to detect the disease early.

新的检测手段应该能够使医生们尽早查出这种疾病。

a new charter for training to enable young people to make the most of their potential.

能够使年轻人充分发挥潜能的新培训规章

使成为可能；使可行

The hot sun enables the grapes to reach optimum ripeness.

炙热的阳光使葡萄能够达到最佳成熟状态。

A series of holes in the side panels enables the position of the shelves to be adjusted.

通过侧板上的一系列小孔可以对隔板位置进行调整。

准许;许可;授权

The republic's legislation enables young people to do a form of alternative service.

共和国的法律允许年轻人服某种形式的替代役。

2、guarantee

确保；使必然发生

Surplus resources alone do not guarantee growth.

仅有富余的资源并不能确保发展。

a man whose fame guarantees that his calls will nearly always be returned.

其名望能确保他的呼吁几乎总能得到回应的人

保证…必定发生；承诺做；答应提供

Most states guarantee the right to free and adequate education.

大多数州都保障人们免费享受充分教育的权利。

All students are guaranteed campus accommodation for their first year.

保证安排所有的学生第一年在校内住宿。