ほ掘hoるru
1.
To create a hole or cavity in a solid substance by removing material, often to uncover or retrieve something hidden beneath the surface.
2.
To search for and extract items or resources located underground, indicating a purposeful effort to reach a desired object.
3.
To remove soil or plants from the ground, typically to relocate them or gain access to underlying elements.
4.
To advance into a dense or hard substance until something is discovered, emphasizing the effort and persistence involved in uncovering hidden objects.
Example:
彼らは穴をあけて石油を掘り当てようとした。