检查一下你的前侧肋骨下部不要明显地向天花板的方向突出，收紧腹部并伸展下背部。

See that your lower front ribs aren't protruding sharply toward the ceiling, which hardens the belly and compresses the lower back.

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检查一下你的前侧肋骨下部不要明显地向天花板的方向突出，收紧腹部并伸展下背部。

See that your lower front ribs aren't protruding sharply toward the ceiling, which hardens the belly and compresses the lower back.

youdao