穿过两扇金属防爆门，22岁的沈佳慧，或者说sammy，走进走廊深处，防空洞投下微弱的、不自然的绿色暗影（此句存疑）。

Passing through a pair of metal blast doors, the woman—22-year-old Sheng Jiahui, who goes by the nickname "Sammy"—moves deep into dimly lit corridors.

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对于丹尼尔和莉莉（沈家慧的英文名）来说，这是他们第一次出国旅行。

Daniel and Ms Jiahui, who go by the names of Lily, are on their first trip outside China.

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