湮没

Who has submerged the fireplace with coom?

谁用煤炭的灰湮没了壁炉香？

Sardinia's origins are lost in the mists of time .

撒丁王国的起源已湮没在时间的迷雾中。

A photomagnetic positronium annihilation model was proposed to explain the experimental facts.

提出正电子素光磁湮没模以解释实验事实。