平肩：肩膀要保持对滚落线平直。

Square shoulders: the shoulders should square up to the fall line.

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用你的食指自右肩划一水平线至左肩。

Now bring your finger up to your right shoulder.

youdao

用你的食指自右肩划一水平线至左肩。

Now bring your finger up to your right shoulder.

youdao