Sam and Dalton, two male squirrel monkeys, were able to see the world in full colour five months after being treated, doctors said.

Sam和Dalton是两只雄性松鼠猴，医生称，它们在接受该治疗五个月后，所看到的世界就是全彩的了。

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The colour comes from the light that remains unabsorbed. Five-nanometre gold particles, for example, look red, and silver ones look yellow.

光中的颜色仍然未被吸收，例如5毫微米的金粒子呈红色，而银离子呈黄色。

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Draw five ducks with different colours and write each colour next to the duck.

画五只鸭子并涂上不同的颜色，在旁边标出每种颜色的单词。

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Participants also ward off evil during the festival by bathing in flower-scented water, wearing five-colour silk, hanging plants such as moxa and calamus over their doors, and pasting paper cut-outs in their windows.

UNESCO: Culture