the ring of small green leaves (called sepals) that protect a flower before it opens 花萼 Word Originlate 17th cent.: from Latin, from Greek kalux ‘case of a bud, husk’, related to kaluptein ‘to hide’.
👨🏻🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
切換為繁體中文