jump.ing bean

jumping-bean的音标和读音：
DJ音标发音： [ˈdʒʌmpiŋ]
KK音标发音： [ˈdʒʌmpɪŋ]

jumping-bean的词性：
n.（名词）

1. A seed, as of certain Mexican plants of the genera Sebastiana and Sapium, containing the larva of the moth Laspeyresia saltitans, whose movements cause the seed to jerk or roll.
跳豆：色柏木 属和 乌桕 属的某些墨西哥植物的种子，内含 小卷蛾 的幼虫，幼虫的活动使种子跳动或滚动