大起大落

dàqǐdàluò
  1. (of market prices etc) to rapidly fluctuate (idiom)
  2. volatile
  3. significant ups and downs
  4. roller coaster

CEDICT

to go through the ups and downs of rapid change

Wiktionary

起伏差度极大，非常不稳定。

重編國語辭典

Entry Composition

1 大 dà
  1. big; large; great
  2. older (than another person)
  3. eldest (as in 大姐 dàjiě)
  4. greatly; freely; fully
  5. (dialect) father
  6. (dialect) uncle (father's brother)
2 起 qǐ
  1. to rise
  2. to raise
  3. to get up
  4. to set out
  5. to start
  6. to appear
  7. to launch
  8. to initiate (action)
  9. to draft
  10. to establish
  11. to get (from a depot or counter)
  12. verb suffix, to start
  13. starting from (a time, place, price etc)
  14. classifier for occurrences or unpredictable events: case, instance
  15. classifier for groups: batch, group
3 大 dà
  1. big; large; great
  2. older (than another person)
  3. eldest (as in 大姐 dàjiě)
  4. greatly; freely; fully
  5. (dialect) father
  6. (dialect) uncle (father's brother)
4 落 luò
  1. to fall or drop
  2. (of the sun) to set
  3. (of a tide) to go out
  4. to lower
  5. to decline or sink
  6. to lag or fall behind
  7. to fall onto
  8. to rest with
  9. to get or receive
  10. to write down
  11. whereabouts
  12. settlement

Related entries

易挥发 yìhuīfā volatile
挥发性 huīfāxìng
  1. volatility
  2. volatile
易变 yìbiàn
  1. mutable
  2. volatile
  3. variable
挥发 huīfā
  1. to volatilize
  2. to vaporize
  3. to evaporate (esp. at ordinary temperatures)
  4. (in compound words) volatile
过山车 guòshānchē roller coaster
我們上班時的情緒，就像坐過山車一樣 ﹣ 老闆臉上一現出不悅的神色，我們就要吃苦頭；老闆臉上有了笑容，我們才能鬆一口氣。這樣的工作，我不想再幹下去了。

I can't keep this up. It's an emotional roller coaster around here and all we have to do is look at the boss's face to know whether everybody is going to be happy or sad.

Source: Tatoeba

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