IO

• n. 【希腊神话】 艾奥（或伊娥：宙斯所爱的少女；被赫拉变成丁小母牛）
• n. 【天】木星的第一卫星

英英释义

Noun:

1. (Greek mythology) a maiden seduced by Zeus; when Hera was about to discover them together Zeus turned her into a white heifer

2. the closest of Jupiter's moons; has active volcanoes