Ian survived basic training, but he faced a steep learning curve when it came to everyday Army life.
伊恩挺过了基础训练，但现在他又要重新面对日常正式军旅生活的挑战。
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The purpose of "lactate threshold" training, then, is to move your lactate curve to the right so that you can run faster before reaching this "threshold."
“乳酸门槛”训练的目的是，将您的乳酸曲线向右移动，这样，在达到这一“门槛”之前，您将跑得更快。
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If you look closely at the lactate curve in the chart at the right, you'll see the full spectrum of the lactate threshold training zone.