全部 » Nature » 无人机以天空为背景飞行 Drone flying with the sky in the background

在阳光明媚的日子里，一架小型无人机在户外飞行，背景是几乎被云层覆盖的蓝天。

Small drone flying outdoors, on a sunny day, with the blue sky almost covered by clouds in the background.