火山喷发后，地上散落着许多多孔的火山渣。

After the eruption, the ground was covered with porous ___cinders.

大火过后，只剩下几堆灰烬和烧焦的木头。

After the fire, only a few ___cinders and charred wood remained.

露营后，我们用土盖住篝火的余烬以防复燃。

After camping, we covered the ___cinders with dirt to prevent them from reigniting.

花园小径铺满了火山灰烬，踩上去沙沙作响。

The garden path was covered with volcanic ___cinders, making a crunchy sound underfoot.