1
the girth of sth
用于表示物体或人体躯干的周长、围长。
The girth of the tree was over three meters.
这棵树的周长超过三米。
周长；围长；（人的）腰围
先理解核心含义，再看它在真实句子里的用法。
周长；围长；（人的）腰围
The distance around a person's body or an object; circumference.
The girth of the tree was over three meters.
这棵树的周长超过三米。
系于动物腹下以固定马鞍或挽具的带子
A band passed under the belly of an animal, which holds a saddle or a harness saddle in place.
人体躯干的周长
the distance around a person's body
动物腰围部分
The part of an animal around which the girth fits.
马具的一种,由环绕马腹的带子组成,用于固定马鞍
stable gear consisting of a band around a horse's belly that holds the saddle in place
The rider checked the girth before mounting the horse.
骑手上马前检查了马肚带。
The tailor measured the girth of his waist for the new suit.
裁缝量了他的腰围以便做新西装。
The tree's girth made it impossible to wrap arms around it.
这棵树的周长让人无法环抱。
用于表示物体或人体躯干的周长、围长。
The girth of the tree was over three meters.
这棵树的周长超过三米。
常见于体检或裁缝场景，指量腰围、胸围等。
The nurse measured the girth of the patient's waist.
护士测量了病人腰部的围长。
指绕过马腹固定马鞍的带子。
Tighten the horse's girth before you ride.
骑马前把马肚带系紧。
Not this
The tree girths 3 meters.
Use this
The tree is 3 meters in girth.
girth 是名词，不是动词，不能直接作谓语表示“围长多少”；可用“be + 数字 + in girth”或“have a girth of + 数字”来表达。
Not this
The girth of the tree is 3 meters wide.
Use this
The girth of the tree is 3 meters.
girth 本身已经表示“周长/围长”，指绕物体一圈的尺寸，不能再加 wide（宽度）来修饰；直接给出测量值即可。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
腰围
The tailor measured his waist girth for the new suit.
裁缝为他量了腰围来做新西装。
树干的围长
The tree girth has increased by several centimeters this year.
今年这棵树的树干围长增加了几厘米。
测量周长
You need a tape measure to measure the girth of the package.
你需要一把卷尺来测量包裹的周长。
围度测量
The doctor recorded the patient's chest girth measurement.
医生记录了病人的胸围测量值。
树干的周长
The girth of the trunk suggests the tree is over a hundred years old.
树干的周长表明这棵树已超过一百年。
围度增大
Regular exercise can lead to an increase in girth of the chest muscles.
经常锻炼可以使胸部肌肉围度增大。
Use girth naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象字母 g 像绳子绕物体一圈返回原点，girth 就是绕一圈量的周长/腰围；马肚带同样绕腹一圈固定马鞍。
语域：mixed 常见场景：horse riding and saddlery、formal descriptions of circumference、health and body measurement 该词的语域随含义变化：表示“周长、围长”或“腰围”时多用于正式或测量语境，如测量物体或人体；表示“肚带”时通常出现在马术或马具相关语境中。日常口语中不很常用，多见于书面或专业场合。
这些词与 girth（/ɡɝθ/）押韵：birth, berth, mirth, worth, earth, firth。注意 girt /ɡɝt/ 和 girl /ɡɝl/ 形似但不押韵；north /nɔrθ/、fourth /fɔrθ/ 也形似，但元音不同。
Dictionary facts from ECDICT, WIKTIONARY.