可持续性不是一种趋势，而是负责任商业的未来。

The writer must be a voice for those who have been silenced.

To promote the high-quality development of the coal industry, we must rely on technological innovation and intelligent upgrading.

决心不过是记忆的奴隶，它会根据你的记忆随意更改。

The beauty of mathematics is that it is both precise and creative.

犯罪小说是探索人类境况的完美载体。