N-VAR
（人、动物等的）围长、腰围
The girth of an object, for example a person's or an animal's body, is its width or thickness, considered as the measurement around its circumference.
例句
A girl he knew had upset him by commenting on his increasing girth.
他认识的一位女孩对他越来越粗的腰身说三道四，这让他心里很不痛快。