You use rental to describe things that are connected with the renting out of goods, properties, and services.
A friend drove her to Atlanta, where she picked up a rental car.
一个朋友开车送她去了亚特兰大,在那里她租到了一辆车。
rentals
The rental of something such as a car or piece of equipment is the activity or process of renting it.
We can arrange car rental from Chicago's O'Hare Airport.
我们可以安排从芝加哥奥黑尔机场租车。
The rental is the amount of money that you pay when you rent something such as a car, property, or piece of equipment.
It has been let at an annual rental of $393,000.
它已经以每年39.3万美元的租金被租出去了。