一掃而空

The number one; single; a; as soon as; entire; whole; all; a "one" radical in Chinese characters; also used for clarity when spelling out numbers.

To sweep with a broom or brush; to clear away dirt or debris; to eliminate or destroy; to scan or glance over; to wipe out or get rid of.

A conjunction connecting clauses or phrases; indicates addition, contrast, or a causal relationship; also used to indicate a change of state.

empty; vacant; unoccupied; air; sky; space; in vain; to empty; leisure; free time; bare; deserted; vast; high