kǒu​jìng HSK7

caliber

口径 (口徑) kǒu​jìng
caliber noun
the internal diameter of a gun barrel, pipe, or optical lens; aperture

The caliber of this rifle is 7.62 mm.

stance noun
a unified version of events, account, or official narrative for the sake of consistency

We must coordinate our stories before the interview.

Frequency

Movie subtitles
11.7 per million appears in 4% of films
Written text
5.40 per million

Details

HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT