🧩 词语组成解析
genus
['dʒi:nəs]
n. （动植物的）属;类;种;型;
🗣️ 情景例句
Well ... well,
哦……哦
How long is the ticket valid?
这车票有效期多久？
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。