砂積礦床 shā jī kuàng chuáng

DEFINITIONS

  1. placer (alluvial deposit containing valuable metals)

CHARACTERS

砂 shā sand; pebbles, gravel; gritty
積 jī accumulate, store up, amass
礦 kuàng mine; mineral, ore
床 chuáng
HSK 2
bed, couch; framework, chassis