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This is the first two-tier bridge to have been designed and built by Chinese engineers in modern times.
这是第一个两层桥梁的设计和建造的中国工程师在现代社会。
youdao
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This is the first two-tier bridge to have been designed and built by Chinese engineers in modern times.
这是第一个两层桥梁的设计和建造的中国工程师在现代社会。
youdao