The word 伏击 (fújī), meaning "ambush", is a compound verb formed through a logical verb-object relationship between its two constituent characters. The first character, 伏 (fú), means "to lie prostrate", "to crouch", or "to hide", conveying the concealment aspect of an ambush. The second character, 击 (jī), means "to strike" or "to attack". When combined, they create a cohesive semantic unit where 伏 describes the preparatory, hidden position and 击 describes the subsequent aggressive action, thus perfectly encapsulating the complete two-stage sequence of lying in wait and then launching a surprise attack.