Their cottage was roofed with green slate.

他们的小房子盖的是绿瓦。

《牛津词典》

Dark green swells, slate-gray in the troughs, rolled in from a heaving horizon.

一排排暗绿色的大浪带着灰白的浪花从远处滚滚而来。

youdao

The upper member of the Lujiaping Formation is mainly dark slate, light gray-green (after weathering) sericitized slate, and silt slate.

上段以黑灰色（风化后为浅灰色）含硅炭板岩和泥灰质含炭板岩为主。

youdao

The men knew it was the middle of the day because the color of the sea changed from slate gray to emerald green, with gold lights.

VOA: special.2011.04.09

Hughes' widow Carol, who he married in 1970, and his daughter Frieda will be among those attending the ceremony, when the Kirkstone green slate memorial stone will be laid.

BBC: Ted Hughes Poets' Corner memorial nears TS Eliot

The iPod nano, he notes, is now offered in pink, yellow, blue, green, purple, silver and slate.

FORBES: Apple Plans iPhones In More Sizes, More Colors, Analyst Says

It comes in pink, yellow, blue, green, purple, silver and slate.

CNN: Yes, they still make 'em: Apple refreshes iPods