That is the true colour.

我想那是最纯粹的颜色。

youdao

At last he showed his true colour.

最后他露出了真面目。

youdao

Method: The sections of glial tumors of 51 patients were stained by SP immunohistochemistry, and examined with true colour image analytic system, and calculated with index of PCNA.

方法：对51例神经胶质细胞瘤作sp免疫组化染色，并以真彩色图像分析系统检测，结合PCNA指数计数分析。

youdao

As for the Greens, they have been true to their colour in an exemplary way, especially in their zeal to close down Germany's 19 nuclear power stations.

ECONOMIST: The road from Hesse | The

True, too, Arab governments should not let their frustration about the peace process colour their attitude towards Mr Hussein, whose potential for mischief still threatens them as much as, maybe more than, anyone.

ECONOMIST: America the unmighty

Neither of these is actually true, as would have been clear to anyone who perused the entire news release or dissected the colour-coded key to the map.

BBC: Harrabin's Notes: Frozen assets