好吧，在某些你别无选择的情况下，如身处漆黑一片的环境中，或在日光下需要补光时，你才需要用上它。
Okay, well, there are a few circumstances where you have little choice, like when it's blacker than the black heart of Socialist Nazi Terrorist, or in daylight when you need a little fill.
现在来谈谈闪光灯补光，补光是指当你在户外，阳光是主要光源时，闪光灯用来照亮阳光给人物带来的阴影等影响(如兔眼等)。
Fill flash is when you are outdoors for example and the light you are getting from the sun is the main light. Fill flash is just that.
补光灯最好只作为冬季室内养殖时的补充光源使用。
Artificial light is best used as a supplement to your winter source if you bring your plants indoors during the winter months.
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