门内两颊 cheeks of the entrance
颚唇内颊片 mala gnathochilarii interior
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把扣索向下从外到内穿过外侧的颊环。
Pass the snap down through the off cheek ting from outside to inside.
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从内到外把扣索穿过外侧的颊环。
Pass the snap up through the off cheek ring from inside to outside.
如果使用方法一的话，把扣索从外到内穿过内侧的颊环。
In method one, pass the snap up through the near cheek ring from outside to inside.
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