我们开始分析时，焦点锁定在一种强氧化剂：臭氧。

We began our analyses with a focus on a particularly efficient oxidant, ozone.

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通常可用三个步骤锁定焦点。

Usually you can lock the focus in three steps.

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相反，给你自己一个赋权焦点，牢牢地锁定你的目标在完全可能的事情上。

Instead, give yourself an empowering focus. Lock your focus solidly on the positive possibilities.

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假若你的拍摄对象不是在照片中央，你就需要锁定焦点已获得清晰的相片。

If your subject is not in the center of the picture, you need to lock the focus to create a sharp picture.

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假若你的拍摄对象不是在照片中央，你就需要锁定焦点已获得清晰的相片。

If your subject is not in the center of the picture, you need to lock the focus to create a sharp picture.

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