Draw your navel to your spine and keep your weight even on the balls of your feet and your heels.
收腹(让肚脐靠向脊柱)，并使重心平均分布于脚掌和脚跟上。
Lunch is the second-most-important meal of the day in your weight-loss plan. It boosts your energy level and regulates your metabolism to keep you on an even keel.
午餐是第二个重要的减肥环节，它能提高你的能量代谢。
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