Senna
n. 山扁豆, 番泻叶, 轻泻剂\\n[化] 番泻叶
📖 牛津释义
senna
n[U]
dried leaves of a tropical plant, used as a laxative 旃那叶, 山扁豆叶, 番泻叶（热带一种植物的乾叶, 用作通便剂）.
🗣️ 情景例句
We'll be heading back late in the afternoon.
我们会在黄昏时打道回府。
There's no need!
多此一举！
I repeated my question several times and at last he understood.
我把问话重复了很多遍。他终于听懂了。