刚才google了一下,找到下面这段:“Akoya pearls take from six to 18 months to grow. In the past,
-sooky(Sooky);
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saltwater pearls have been prized as the pearl of choice for necklaces, but in recent years, the outstanding quality of freshwater pearls has challenged this status. Now, these two types of pearls are virtually equal in quality and beauty.”