珍珠类：天然珍珠、养殖珍珠、天然海珠、海水珍珠、淡水珍珠、南洋珍珠、黑珍珠；
Pearl categories: natural pearls, cultured pearls, natural sea beads, sea pearls, freshwater pearls, South Sea pearls, black pearls;
他们包括平均寿命只有11.6天的桡脚类的动物（一种小的甲壳类动物）非洲的汤氏纺锤水蚤，和可以存活74年的珍珠胎贝(珠母贝)。
They included cold-blooded organisms that ranged in average lifespan from 11.6 days for the copepod (small crustaceans) Arcartia tonsa to 74 years for the pearl mussel (Margaritifera margaritifera).
珍珠菜属植物主要含有黄酮类、三萜皂苷类、酸性成分等，药理作用表明其具有清热利湿、活血化瘀、解毒消痈、抗菌消炎等作用。
Lysimachia mainly contain flavonoids, saponins and phenolic acids, and some of the plants have been used in the treatment of fever, ulcers, diarrhea and as analgesic or anti inflammatory agents.
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