chōu​kǎo

to conduct a sample examination

抽考 chōu​kǎo
to conduct a sample examination
To select a subset of people from a group, or a subset of subjects or material, for testing
to give a surprise test
To conduct an examination at an unscheduled or irregular time; to give a spot check

Frequency

Written text
0.087 per million

Sources

Frequency data
BCC Corpus (BLCU)