秦朝统一中国
The Qin Dynasty unified China
以上为机器翻译结果，长、整句建议使用 人工翻译 。
实际上，长城最初只是一些断断续续的城墙，直到秦朝统一中国之后才将其连成长城。
In fact, it began as independent walls for different states when it was first built, and did not become the Great Wall until the Qin Dynasty.
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