名詞 bittersweet:

1. poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America
   同義詞：bittersweet nightshade, climbing nightshade, deadly nightshade, poisonous nightshade, woody nightshade, Solanum dulcamara
2. twining shrub of North America having yellow capsules enclosing scarlet seeds
   同義詞：American bittersweet, climbing bittersweet, false bittersweet, staff vine, waxwork, shrubby bittersweet, Celastrus scandens

形容詞 bittersweet:

1. tinged with sadness
2. having a taste that is a mixture of bitterness and sweetness
   同義詞：semisweet

1. A bittersweet longing for things, persons, or situations of the past.
   懷舊對過去事物、人或環(huán)境苦樂參半的渴望

bit.ter.sweet

n.（名詞）
A woody vine of the genusCelastrus, especially the North American species C. scandens and the eastern Asian species C. orbiculata, having small, round, yellow-orange fruits that open at maturity to expose red seeds. Also called staff tree
美洲南蛇藤：一種南蛇藤屬 的木本攀沿植物，尤指北美品種 攀緣南蛇藤屬 和東亞品種 正圓形藤屬 ，有小而圓的桔黃色果實(shí)，成熟時開裂露出紅色種子 也作 staff tree
See bittersweet nightshade
參見 bittersweet nightshade
Color A dark to deep reddish orange.
【色彩】 深桔紅色
adj.（形容詞）
Bitter and sweet at the same time:
又苦又甜的：
例句：
bittersweet chocolate.
又苦又甜的巧克力

Producing or expressing a mixture of pain and pleasure:
苦樂參半的：
例句：
a movie with a bittersweet ending.
結(jié)尾亦悲亦喜的電影

Color Dark to deep reddish-orange.
【色彩】 深桔紅色

來源：
[After its roots, which are said to taste bitter, then sweet when chewed]
[來自其根，據(jù)說咀嚼時味道先苦后甜]