游走细胞在珍珠囊的早期发育阶段十分活跃。

Wandering cells are more active during the early developmental stage of the pearl sac.

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另外的人则将澳大利亚近30年以来在珍珠供应方面所采取的限额制视为解决问题的模式。

Others see the quota system that has restricted the supply of Australian pearls for almost 30 years as a model.

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哈利喊道，声音在空旷的山头回响，几只黑鸟飞起，咕咕叫着在珍珠色的天空下盘旋。

Harry shouted, his voice echoing across the empty hilltop, and several blackbirds rose into the air, squawking and spiraling against the pearly sky.

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Another is the admonition not to throw your pearls before swine, not to preach to those who can't hear, or won't be perceptive.

第二个是一句警句：,不要在猪的面前乱扔你的珍珠，不要对那些失聪者，和不可感化者布道。

耶鲁公开课 - 1945年后的美国小说课程节选