老蚌生珠 lǎo bàng shēng zhū 🔊 lit. an old oyster producing a pearl (idiom) + Keep this word Meanings lǎo bàng shēng zhū lit. an old oyster producing a pearl (idiom)fig. birthing a son at an advanced age Its characters 老lǎoprefix used before the surname of a…HSK 3蚌bàngmussel生shēngto growHSK 4珠zhūbead