/stʌd; stʌd/
n
1 (a) small two-headed button-like device put through buttonholes to fasten a collar, shirt-front, etc （两端突起的）领扣, 饰钮（衬衫前面用的）.
(b) piece of jewellery (esp an ear-ring) consisting of a precious stone, etc attached to a small bar （镶有宝石等并有一条小棍连着的）首饰; （尤指）耳环
*diamond studs in her ears 她耳朵上戴的钻石耳环.
2 (a) large-headed nail or knob (usu one of many) on the surface of sth (eg a gate or a shield) as an ornament 饰钉, 大头钉（如钉在门、盾等上的）.
(b) small round knob on the sole of a shoe or boot, to allow it to grip better 鞋钉（鞋靴底部的, 用以增加附着力）
*the studs on a football boot 足球靴的靴钉.

v (-dd-) [Tn, Tn.pr usu passive 通常用于被动语态] ~ sth (with sth) decorate (a surface) with many studs, precious stones, etc 用许多饰钮、饰钉、宝石等装饰（某物表面）
*millions of stars studding the night sky 布满夜空的繁星
* a crown studded with jewels 镶满宝石的皇冠
* a sea studded with small islands 有许多小岛的大海.

/stʌd; stʌd/
n
1 (a) number of horses kept esp for breeding 一群马（尤指种马）
*[attrib 作定语] a stud mare 雌性种马.
(b) (also `stud-farm) place where such horses are kept 种马场.
2 ( infml 讳, 口) young man, esp one who is thought to be very active sexually and is regarded as a good sexual partner 小伙子（尤指性欲旺盛堪为性伴侣的）.
3 (idm 习语) at `stud (of a stallion) available for breeding on payment of a fee （指牡马）供配种以收取费用的. put sth out to `stud keep (a horse) for breeding 为配种而饲养（马）.