Problem: You have a very large array of strings. You have another string and need to know if it is already in the list.

问题：你有一个很大的字符串数组，同时，你另外还有一个字符串，需要知道这个字符串是否已经存在于字符串数组中。

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This image shows the eruption of a galactic "super-volcano" in the massive galaxy M87, as witnessed by NASA's Chandra X-ray Observatory and NSF's Very Large Array (VLA).

这幅图像显示了M 87大质量星系里的一次极大的“超级火山”喷发。NASA的钱德拉X射线望远镜和国家科学基金会(nsf)的超大阵列(VLA)目击了此景。

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The image includes X-ray data from Chandra (colored purple), optical and ultraviolet (UV) data from Hubble (red and orange), and radio emission from the Very Large Array (VLA) and MERLIN (blue).

图像中的x射线数据来自钱德拉(紫色部分)，光波和紫外光数据来自哈勃(红色和橙色)，射电辐射则来自甚大阵射电望远镜(very large array)和梅林(蓝色)。

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The Very Large Array (VLA) is a bank of radio telescopes in New Mexico, US, and has appeared in a number of films including Contact and Independence Day.

BBC: Very Large Array telescope in public call for new name

"A 5mm (0.2 inches) particle striking a large solar array is likely to have a very little long-lasting effect, but such an object hitting the main body of a satellite could cause a vital component to fail, " he said.

CNN: Space harpoon plan to nail orbital garbage