After two decades, 95 percent of the elemental mercury on the surface of a filling had gone through a chemical reaction. It became beta-mercury sulfide, a black-colored solid.

经过了20年的光阴，旧填充物表面有95%的汞元素已经发生了化学反应，它变成了黑辰砂(beta - mercury sulfide)，一种黑色的固体。

youdao

Suppose someone gave you a pen a sealed, solid-colored pen.

假如有人送你一支笔，一支不可拆卸的单色钢笔。

youdao

Suppose someone gave you a pen? A sealed, solid-colored pen.

假如有人送你一支笔，一支不可拆卸的单色钢笔。

youdao

It is crafted entirely of champagne colored solid gold with diamonds and rubies on the cap and barrel.

FORBES: The Montblanc Princess Grace Collection

Once you've come down from the initial shock, HTC's subtle flairs begin to peek out, like the solid colored speaker grill that serves to break the front face's expanse of glass with a shock of vibrancy.

ENGADGET: Windows Phone 8X by HTC hands-on: Microsoft's modern mobile OS personified in polycarbonate