Then I bend at the waist, and with a strike of a match, I set the last prairie on fire.

接着，我弯下腰，划着火柴，点燃这片最后的草原。

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We bend a bow to shoot arrows and when we finish a performance we bend at the waist and take a bow.

像是我们弯弓射箭，或是当演出结束时，我们弯腰鞠躬。

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Walk forward. That means tilt slightly forward from the waist when walking. Bend your arms at the elbow and pump them as you walk. This helps to create momentum and balance.

走路时腰部以上微微前倾 ，肘关节自然弯曲摆动，这有利于产生动力并平衡身体。

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