Shimmery silver with a dark base.

暗色基调上闪耀着银色。

youdao

Today's porters are made a bit differently: Instead of blending in old beer, brewers enrich a lighter base beer with a dash of dark brown, caramel or coffee malt as well as, often, a liberal dose of potent American hops for extra kick.

WSJ: Porters Get Fresh | Half Full

People who believe arms control agreements can tame the world are placing faith in, and would base national security on, parchment barriers to the dark furies of history.

CENTERFORSECURITYPOLICY: Center for Security Policy | Politics and the Test Ban Treaty, By George F. Will, Newsweek, 20 October 1999

Nerys Sanders, coastguard watch assistant at Swansea Coastguards, said staff at the base near Mumbles lighthouse first saw about 60 or 70 of the dark blue-grey whales about half a mile from the shore.

BBC: Pilot whales usually travel in family groups