矿工在隧道里发现了一块煤。

The miner found a ___lump of coal in the tunnel.

上菜前要确保肉汁里没有结块。

Make sure there are no ___lumps in the gravy before serving.

建筑工地上散落着许多干混凝土块。

The construction site was littered with ___lumps of dried concrete.