Like other kinds of trash dumped into landfills, the waste from the Gulf cleanup will eventually decompose, releasing a variety of gases and liquids which are vented or disposed of in turn.

VOA: standard.2010.08.05

Eventually,the body will decay, turn into atoms or whatever it is,decompose.

最终，肉体会消亡，分解成为原子。

耶鲁公开课 - 死亡课程节选

Engines will eventually decompose and turn back into atoms.

发动机最终会被分解,回归到原子状态。

耶鲁公开课 - 死亡课程节选