留底

liú dǐ

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释义

  1. 1. to keep a copy
  2. 2. copy kept for archiving
  3. 3. to put aside a portion (of a money sum)

留底 的构成词

底
de

(equivalent to 的 as possessive particle)

底
dǐ

background

留
liú

to leave (a message etc)