宝丽希凯sx- 70是第一个主动对焦单镜头反光拍照机，于1978年发布。

The Polaroid SX-70 was the first autofocus single-lens reflex camera, released in 1978.

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宝丽希凯sx- 70是第一个主动对焦单镜头反光拍照机，于1978年发布。

The Polaroid SX-70 was the first autofocus single-lens reflex camera, released in 1978.

youdao