The first is bilateral breathing, way Ian breathes both sides, one in three strokes.

第一种是两侧呼吸，即三次划臂一次呼吸。

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The second advantage to bilateral breathing is that it will allow you to see to the right and left.

双侧呼吸的第二个优势是那样将允许向左也可以向右看。

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[/color]The second advantage to bilateral breathing is that it will allow you to see to the right and left.

[color=blue]双侧呼吸的第二个优势是那样将允许向左也可以向右看。

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