点滴试验 diǎn dī shì yàn

DEFINITIONS

  1. spot check

CHARACTERS

点 diǎn
HSK 1
dot, speck, spot; point, degree
滴 dī
HSK 5
drip; drop of water
试 shì
HSK 2
test, try, experiment
验 yàn
HSK 4
test, examine, inspect; verify