Puppeteer Ron Binion grabbed onto a metal armature inside the leg to move it.

木偶师罗恩·比尼恩 (Ron Binion) 抓住腿内的金属骨架来移动它。

Narrator: They add some structure by burying a superthin metal armature beneath the foam.

旁白：他们通过在泡沫下方埋入一个超薄金属电枢来增加一些结构。