Later in his career, Frank continued to shoot photos and film, largely focusing his lens on America's least privileged, rather than the powerful.

在后期的职业生涯中，弗兰克依然在拍摄照片和电影，将镜头聚焦在美国最弱势的群体上，而非最有权势的群体上。

I could feel his cold breath on my hand as I focused the lens, and that's how I got the truth.

当我聚焦镜头时，我能感觉到他冷冷的气息喷在我的手上，这就是我得到真相的方式。

When we look at an object, the background and foreground are usually blurry, because a lens can only focus light coming from one distance away.

当我们看一个物体时， 背景和前景通常是模糊的，因为镜头只能聚焦一个距离的光线。