투입하다

Having a very close, tight, and inseparable relationship or connection. It is often used to describe cooperation or the link between two concepts.

The branch of knowledge concerned with the production, consumption, and transfer of wealth. A common academic subject in TOEFL listening and reading.

The location or site conditions of a building, business, or facility. It can also figuratively refer to one's standing or position in a group or society.

The act of handling or dealing with a difficult situation, problem, or change effectively.

The act of buying, selling, or exchanging goods, services, or money. It involves a deal or transaction between two or more parties.

To expect or predict a future event or situation based on current information or trends.

The process of making or producing goods on a large scale using machinery; manufacturing.

To start an activity again after a pause or interruption. This word is often found in TOEFL news snippets or history passages regarding negotiations or projects.

The act of lending something, especially money from a bank or books from a library.

To work at a certain place or in a certain position, usually referring to formal employment. It emphasizes the place or the shift of work.