Five for silver, six for gold.

五代表银子，六代表金子。

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Five-nanometre gold particles, for example, look red, and silver ones look yellow.

例如，五纳米的金粒子呈现红色，银粒子呈黄色。

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Five-nanometre gold particles, for example, look red, and silver ones look yellow.

例如，五纳米的金粒子呈现红色，银粒子呈黄色。

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