直升機蜻蜓點水．前線起降

A military helicopter executes a quick touch-and-go at the forward operating base, skids briefly kissing the dusty tarmac before lifting off again within seconds, rotor wash kicking up a thick cloud of dust that rolls outward across the perimeter fencing. It hovers steady at eye level for a beat, nose dipping slightly, before descending fully to land at the FOB, rotor blades slowing as ground crew approach in a low crouch beneath the wash. Camera holds a grounded low angle throughout, handheld documentary-style shake, harsh midday desert light, sand and grit visibly swirling in the air, engine roar implied through visual vibration, realistic tactical urgency in the pacing.