Joint discs e hammer: o que têm em comum

1. Passo 1. Joint discs — faz parte de — Teddy bear. Movable limbs.
2. Passo 2. Teddy bear — é feito de — Wool. Plush.
3. Passo 3. Wool — é material para — Trousers. The oldest trousers (Yanghai) were sewn from wool.
4. Passo 4. Trousers — utiliza — Needle. Trousers were sewn with a needle.
5. Passo 5. Needle — evoluiu de — Stone tool. Bone needles with an eye are part of the Palaeolithic toolkit.
6. Passo 6. Stone tool — evoluiu para — Hammer. The first hammer was a stone in the hand.

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