jiào​chājiào​chà

range

较差 (較差) jiào​chā frequency
range adverb
range (the difference between the lowest and highest values)

Calculate the range for this set of observations.

较差 (較差) jiào​chà
mediocre adverb
rather poor or not especially good in quality

Due to severe air pollution, the air quality in the region is relatively poor.

Frequency

Written text
10.3 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)