In English, "乘坐小汽车" can be translated as "ride in a car". The phrase "ride in" means to be a passenger in a vehicle, and "car" is a vehicle with four wheels that is powered by an engine.

The word "car" comes from the Latin word "carrus", which means "wheeled vehicle". In Old English, the word "car" referred to any wheeled vehicle, but over time it came to specifically refer to a vehicle with an engine.

Here are some example sentences in English and their Chinese translations:

I always enjoy riding in my car. (我总是喜欢坐我的小汽车。)

We will need to take a car to get to the airport. (我们需要坐小汽车去机场。)

He drives a small car. (他开一辆小汽车。)