Ask their children to describe its characters.

让孩子描述其中的角色。

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With every change in the altitude of the sun the display changes its characters;

这种景象随着太阳高度的变化而变幻。

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With every change in the altitude of the sun the display changes its characters;

这种景象随着太阳高度的变化而变幻。

youdao