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1. They could not afford to spoil those maps by careless colouring.

若是上色的时候不小心弄坏了那些地图，他们可承担不起。

2. Choose shades which tone in with your natural colouring.

选择与你本身的肤色相衬的颜色。

3. Many women begin colouring their hair in their mid-30s.

很多女人在三十五岁左右开始染发。

4. None of them had their father's dark colouring.

他们都不像父亲那样黑。

5. We'd been making cakes and colouring the posters.

我们一直在做蛋糕，给海报上色。