你不知道什么时候可能要清理滤镜或者镜头盖之类，因为在寒冷的环境中，镜头很容易变得潮湿。
Who knows when you might want to clean your filter or front element that has become moist from going in and out of cold temperatures?
你不知道什么时候可能要清理滤镜或者镜头盖之类，因为在寒冷的环境中，镜头很容易变得潮湿。
Who knows when you might want to clean your filter or front element that has become moist from going in and out of cold temperatures?
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