在研究玉米的基因构成时，芭芭拉·麦克林托克发现了一种新的突变基因，这一发现使人们对细胞分化有了更深入的了解。

While studying the genetic makeup of corn, a new class of mutant genes was discovered by Barbara McClintock, a discovery which led to greater understanding of cell differentiation.

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贝林的第三个主张提出了在成千上万的移民中普遍存在的两种模式：一种是契约仆役，另一种是为了获得土地。

Bailyn's third proposition suggests two general patterns prevailing among the many thousands of migrants: one group came as indentured servants, another came to acquire land.

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南非的路德维克·马瑞尚在林波波省与他的朋友们在一起时，他们开始讨论发明一种涂在皮肤上就不用洗澡的东西。

Ludwick Marishane, a South African, was with his friends in Limpopo when they started talking about inventing something to put on your skin so you don't have to take a bath.

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