针孔

針孔
zhēnkǒng
pinhole

CEDICT

Entry Composition

=1 针 zhēn
  1. needle
  2. pin
  3. injection
  4. stitch

classifiers: 根, 支
=1 针 zhēn variant of 针 zhēn, needle
2 孔 kǒng
  1. hole
  2. classifier for cave dwellings

classifier: 個