1. 凳子
A stool is a seat with legs but no support for your arms or back.
e.g. O'Brien sat on a bar stool and leaned his elbows on the counter.
奥布赖恩坐在一张吧凳上，胳膊肘靠在吧台上。
2. 两头落空;鸡飞蛋打
If someone has fallen between two stools, they are unable to decide which of two courses of action to take and as a result they have not done either of them successfully.
3. 大便;粪便
Stools are the pieces of solid waste matter that are passed out of a person's body through their bowels.
名词粪便；凳子；根株网络大便；搁脚凳；厨房高脚椅