他在派对上总是站在角落里，像个壁花一样安静。

He always stands quietly in the corner at parties, like a ___wallflower.

我在花园里种了一些紫色的桂竹香，它们春天开花时香气扑鼻。

I planted some purple ___wallflowers in my garden, and they smell delightful when they bloom in spring.