The solid decomposed rapidly with blackening.是什么意思？

The solid decomposed rapidly with blackening.

固体迅速分解并变暗.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

solid

adj. 固体的，实心的，结实的，可靠的，可信赖的；n. 固体，立体图形，立方体；

例句
She gave him a soft appealing look that would have melted solid ice.
她恳求地看了他一眼，温柔的眼神足以融化坚冰。

decomposed

adj. 已分解的，已腐烂的；v. 腐烂( decompose的过去式和过去分词 )，（使）分解，<化>分解（某物质、光线等）；

例句
The solid decomposed rapidly with blackening.
固体迅速分解并变暗.

rapidly

adv. 很快地，迅速地，立即；

例句
He had discovered politics and was rapidly becoming absorbed by it...
他接触到了政治并且迅速地对它着了迷。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

blackening

v. 变黑，致黑，（使）变黑，把…弄黑( blacken的现在分词 )，发暗，败坏（名誉等），诋毁；

例句
The married women of Shitamachi maintained the custom of blackening their teeth...
下町的已婚女性还保留着把牙齿涂黑的习俗。