Four-colour problem
[计] 四色问题
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
colour
['kʌlɚ]
n. 颜色;肤色;彩色;（用于服装、旗帜等代表团队、学校、政党或国家的）色彩;
vt. （用颜料、彩色笔等）为…着色;粉饰;歪曲;使脸红;
vi. 变色;
🗣️ 情景例句
Mr. Harry Bennett and his daughter.
Harry Bennett先生和他女儿。
Don't worry. You'll get used to it in no time.
别担心，你很快就会习惯的。
He must, for example, perceive an egg as a simple single solid shape,
以鸟蛋为例，观赏者必须感觉到它是一个单一的实体形态，