无论是微小水滴还是飞溅的水花，确定你的目标焦点，并相应地对准相机焦距。

Make sure you know what you're aiming to focus on, either the droplet or the resulting splash and aim your camera and focus accordingly.

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焦距：焦点平面，焦距和景深。

Focus: plane of focus; focal length; and depth of field.

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焦距：镜头中心与其主焦点的距离。

Focal length: The distance between the centre of a lens and its principal focus.

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