Cardinalis
[医]蝶铰部（软体动物）
🗣️ 情景例句
To apologize for leaving so early,I brought you a little gift.
为了表示我对提早走掉的歉意，我给你带了一件小礼物。
Make up your mind!
干脆点！
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，