wormwood
/ˈwɜ:mwud; `wəmˌwʊd/ n[U]
1 woody plant with a bitter flavour, used in making some alcoholic drinks (eg absinthe) and medicines 蒿, 艾蒿, 洋艾（用以制艾酒和入药）.
2 (experience that causes) intense bitterness, humiliation, shame, etc 极大的痛苦、 侮辱、 羞耻等; 造成这类感觉的经历.