Treating these cancer cells with salmonella effectively makes them "visible" to the body's immune cells and therefore open to attack.

用沙门氏菌培养这些癌细胞可以有效地使得身体的免疫细胞“侦察”到它们，然后开始攻击。

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It consists of four planks nailed to two cross-beams, on which the scars of the attack are visible.

那是钉在两条横木上面的四块木板，攻打的伤痕还看得出。

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This system will become visible once you begin your attack.

该系统在您开始进攻时就会显示。

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Organizers have been holding regular meetings with the authorities since the Boston attack, and extra police will be visible along the 26.2-mile course.

NPR: Memories Of Safe Olympics Assure London Runners

But its 16 authors, led by Michael Ladisch, a biological engineer at Purdue University, reckon that high-tech chow will, within the next 25 years, protect troops from attack by biological weapons, insulate them against cold weather and even make them visible to their commanders by satellite.

ECONOMIST: A new report speculates on army rations of the future