Interpretation: the key. Quite important, indispensable at a critical moment, metaphor is the most important. It is the key point when solving problems.

The two most important characteristics that are crucial to success are self-confidence and self-discipline.

Top priority

Explain the most important thing or thing among important things, and describe something or thing is very important.

He said that with education, economic growth and social and human development, employment is the top priority.

play a decisive role

Explain that as long as the foot moves, it will affect the weight on both sides. Refers to being in an important position, and every move is enough to affect the overall situation.

The source "The Biography of Dou Rong in the Later Han Dynasty": "When the alchemy and the Han Dynasty attacked each other, the power was in the general, and the matter was also."

unparalleled

Explain analogy: comparison. There is nothing like it.

Source "New Democracy": "This is a great change, which is unparalleled in the history of the world and China."