井下

jǐngxià
  1. underground
  2. in the pit (mining)

CEDICT

Entry Composition

1 井 jǐng
  1. a well
  2. neat
  3. orderly

classifier: 口
2 下 xià
  1. down
  2. downwards
  3. below
  4. lower
  5. later
  6. next (week etc)
  7. second (of two parts)
  8. to decline
  9. to go down
  10. to arrive at (a decision, conclusion etc)
  11. measure word to show the frequency of an action

Containing this entry

落井下石 luòjǐngxiàshí
  1. to throw stones at sb who has fallen down a well (idiom)
  2. to hit a person when he's down

Related entries

在地下 zàidìxià underground
地铁在地下通行。

Subways run under the ground.

Source: Tatoeba

地下 dìxià
  1. underground
  2. subterranean
  3. covert
雨斷斷續續地下了一整天。

It rained on and off all day.

Source: Tatoeba

地底 dìdǐ
  1. subterranean
  2. underground