A more thorough explanation:

Definition: Manual labor refers to work that is primarily done through physical effort, using tools or machinery, or without them.

Examples:

• Construction workers lifting heavy materials and using tools to build structures.
• Factory workers assembling products on an assembly line.
• Farmers plowing fields, planting crops, and harvesting produce.

The examples illustrate how manual labor involves using physical strength and effort to complete tasks. It can be done with or without the use of tools or machinery, but it always requires the worker to use their muscles to get the job done.