Holten Anderson says iron is a key ingredient that makes the adhesive strong and flexible.

安德森说铁是其中的关键元素，让粘合剂更加强健而富有弹性。

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Holten Anderson says iron is a key ingredient that makes the adhesive strong and flexible.

安德森说铁是其中的关键元素，让粘合剂更加强健而富有弹性。

youdao