The San Francisco-to-San Diego high-speed line alone is expected to cost at least $45 billion by the time it is finished.

仅旧金山至圣地亚哥的高铁线路完工就预期耗资450$。

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The San Francisco-to-San Diego high-speed line alone is expected to cost at least $45 billion by the time it is finished.

仅旧金山至圣地亚哥的高铁线路完工就预期耗资450$。

youdao