珠心

例句：

1. 1. The pearl heart is the soft part inside a pear where it grows.
   珍珠心是梨内部柔软的部分，它在那里生长。
2. 2. The pearl heart is used in jewelry to add a touch of elegance and sophistication.
   珍珠心被用于珠宝制作中，以增添优雅和精致感。
3. 3. The pearl heart has been used for centuries as a symbol of wealth and power.
   珍珠心自古以来一直被用作财富和权力的象征。