瓦礫

rubble / debris

wǎ = w + a3

roof tile / abbr. for 瓦特[wa3 te4]

Willy Walrus (w) is practicing karate in the ashram (a3) and smashing one roof tile (瓦) after the other.

lì = li + Ø4

gravel / small stone

pile of rubble / debris

瓦礫 currently does not appear in any sentence.