如影隨形

如影随形
rúyǐngsuíxíng
  1. lit. as the shadow follows the body (idiom)
  2. fig. closely associated with each other; inseparable; to follow relentlessly

CEDICT

closely associated with each other; inseparable

Wiktionary

  1. 語本《列子．說符》：「形枉則影曲，形直則影正，然則枉直隨形而不在影。」比喻彼此間有密切的因果關係。
  2. 比喻常在一起。

重編國語辭典

  1. 比喻彼此間有密切的因果關係
  2. 比喻緊緊跟隨，互不分離

維基詞典

Entry Composition

1 如 rú
  1. as
  2. as if
  3. such as
2 影 yǐng
  1. picture
  2. image
  3. film
  4. movie
  5. photograph
  6. reflection
  7. shadow
  8. trace
3 隨 suí
  1. to follow
  2. to comply with
  3. varying according to...
  4. to allow
  5. subsequently
4 形 xíng
  1. to appear
  2. to look
  3. form
  4. shape