办丧事虽有一定的礼仪,但还是以哀痛为本。

The rise of China and the resurgence of Russia have challenged the idea that liberal democracy is the only viable form of government.

We must leave healthy waters for the next generation.

如果程序处理大量数据，则它会以几种方式进行处理。

未来的食物将是美味、可持续和友善的。