Seva
abbr. stand-up extravehicular activity （宇航员在外层空间的）直立舱外活动
🗣️ 情景例句
I'm really glad to see you.
非常高兴见到 。
His heart cannot be pure whose tongue is not clear.
嘴不净者心不纯。
but they lead mysterious lives of their own as well.
但是，它们又有自己神秘的生活方式。