略知皮毛

lüèzhīpímáo
  1. slight knowledge of sth
  2. superficial acquaintance with a subject
  3. a smattering

CEDICT

见识浅薄，仅知大概。

重編國語辭典

Entry Composition

=1 略 lüè
  1. brief; sketchy
  2. outline; summary
  3. to omit
  4. (bound form before a single-character verb) a bit; somewhat; slightly
  5. plan; strategy
  6. to capture (territory)
=1 略 lüè variant of 略 lüè
2 知 zhī
  1. to know
  2. to be aware
3 皮毛 pímáo
  1. fur
  2. fur clothing
  3. skin and hair
  4. superficial
  5. superficial knowledge