gooseberry
noun [ C ] uk/ˈɡʊz.bər.i/ us/ˈɡʊz.bər.i/
茶子，醋栗
a small, green fruit covered with short hairs. Gooseberries grow on bushes and have a sour taste.
Gooseberries are used for making pies and jam. 醋栗用来做馅饼和果酱。
Idiom
play gooseberryidiom UK informal (also feel like a gooseberry) 不知趣地夹在别人之间；（尤指夹在两个恋人之间）当电灯泡
to be an unwanted third person who is present when two other people, especially two people having a romantic relationship, want to be alone