So, in order to preserve a watercolour painting for 500 years, it tends to be displayed in the region of two years per decade.

因此，为了使一副水彩画可以保存500年，这幅画往往十年中可以展览大约两年。

Shaun had left school with no qualifications, but tried his hand at a wide range of crafts – from watercolour painting to sculpture.

肖恩离开学校时没有获得任何资格证书，但他尝试了各种各样的手工艺——从水彩画到雕塑。