裤裆的英文：
a crotch (of trousers)

参考例句：

Saddle width is too narrow and low in crotch.
臀围太窄，裤裆处太低。

These jeans are too tight in the crotch.
这些牛仔裤的裤裆太紧了。

crotch是什么意思：
n. （人体的）胯部，两腿分叉处，裤裆

These jeans are too tight in the crotch.
这些牛仔裤的裤裆太紧了。

Saddle width is too narrow and low in crotch.
臀围太窄，裤裆处太低。

The minute the dog wore new pet clothes, it urinated and wet its crotch.
刚给小狗穿上新的宠物装, 它就尿了, 把胯裆处尿湿了一大片!

The low crotch of the vest revealed a stiff shirt bosom of white and pink stripes.
西装背心的低领里露出浆得笔挺的白底粉红条纹衬衫的前胸。

"In Greco-Roman style, a wrestler can only hold the upper part of the opponent's Body,crotch holding and tripping with legs are forbidden．"
在古典式摔跤中,运动员只可以抱握对方上身,不允许抱握对方下肢或用腿使绊。

trousers是什么意思：
n. 裤子，长裤，西装长裤

The hot iron seared the trousers.
热熨斗烫焦了长裤。

That pair of trousers is made of corduroy.
那条裤子是灯芯绒的。

He dusted his trousers.
他掸掉裤子上的尘土。

There are some splashes of mud on your trousers.
你的裤子上溅有泥浆。

Tuck your trousers into your boots.
把你的裤脚塞进靴子里。