wallflowers

/ˈwɑːlˌflaʊ.ɚ/

名词

桂竹香，墙头花
壁花；（尤指社交活动中）无人青睐的害羞女子
Sooner or later someone would take pity on the poor wallflower and ask her to dance.
迟早会有人可怜那个没有舞伴的害羞姑娘，请她跳舞的。