虽然 as well as 和 and 都用于并列连接对等的成分，但 as well as 不等通过于 and，具体的区别如下：

一、A as well as B 侧重点是 A，而 A and B 中的 A 和 B 是一样的重要，例如：

They have spoken to Bob as well as Jim.

他们跟鲍勃和吉姆都谈过了。

解析：此句强调的重点是 Bob。

On the New Year’s Eve, she likes singing as well as dancing.

除夕夜，她喜欢唱歌，也喜欢跳舞。

解析：此句强调的重点是 singing。

又如：

My bike and the car have broken down today.

我的自行车和汽车今天坏了。

解析：此句没有强调，表明自行车和汽车都坏了。

My bike, as well as, the car has broken down today.

不仅我的汽车还有我的自行车坏了。

解析：此句强调自行车坏了。

The present government focuses on health care, infrastructure and development, and immigration.

本届政府的重点是医疗保健、基础设施和发展以及移民。

以上例句 and 若改为 as well as就显得不合理，因为这些领域都一样重要，没有必要强调。

二、当连接两个人或物作主语时，as well as 谓语的数是跟其前面的主语一致，而 and 谓语用复数，例如：

Rand and Sten are coming.

兰德和斯滕来了。

Rand as well as Sten is coming.

不仅兰德还有斯滕来了。