Use the sentence to answer the question.

The mechanic said the car needed some brake things replaced.
Which words can replace the imprecise phrase some brake things with domain-specific language?

1. The wheel cylinders
2. Some important parts
3. Things that stop the car
4. Some parts that wore out

1. The wheel cylinders

To answer this question, we need to identify the specific parts of the brake system that need to be replaced. One way to do this is by understanding the function and components of a car's braking system. The brake system generally consists of components like brake pads, rotors, calipers, brake lines, and wheel cylinders.

Looking at the options provided:

1. The wheel cylinders: This option refers to a specific part of the brake system, and since the mechanic mentioned that the car needed brake parts replaced, it could be an appropriate substitution for "some brake things."

2. Some important parts: While this option suggests that the parts needing replacement are important, it does not provide specific information about the components of the brake system.

3. Things that stop the car: This option provides a broader description of the function of the brake system but does not specify the actual parts needing replacement.

4. Some parts that wore out: This option conveys that the parts needing replacement have worn out, which is a possible reason for brake system repair. However, it does not specifically identify the components of the brake system.

Based on the given information, option 1 - "The wheel cylinders" - appears to be the most domain-specific language that can replace the imprecise phrase "some brake things." It refers to a specific part of the brake system that could be part of what the mechanic means.

The words that can replace the imprecise phrase "some brake things" with domain-specific language are:

1. The wheel cylinders
4. Some parts that wore out