SSRIs block serotonin re-uptake, boosting its concentration in the synapse.

选择性血清胺再吸收抑制剂阻滞了血清胺的再吸收，增加了其在神经突触中的浓度。

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Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.

在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。

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Sugar affects texture differently depending on its concentration. In dilute solution it adds body and mouth feel to soft drinks.

糖对质构的影响取决于它在体系中的浓度：稀溶液时可增加软饮料的品质和口感。

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The structural moment of concentration on the code for its own sake cannot be avoided, and literature necessarily breeds its own formalism.

集中在代码上的结构瞬间,因为它本身的原因不可避免，文学必要地导致了它自身的形式主义。

耶鲁公开课 - 文学理论导论课程节选

In part, this is because of its concentration on selling basic foodstuffs, which are largely recession-proof.

ECONOMIST: Smaller South Korean firms

Partly because of its concentration on chips, Austin discovered software late, but it is catching up quickly.

ECONOMIST: Silicon Valley: Deep in the heart of Texas | The

However, despite its concentration in European countries experiencing weak economic conditions, Booking.com?s growth held up in Q3 2012.

FORBES: Priceline's Earning Preview: International Hotel Bookings & Margins In Focus