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来源:雅诚德英语网
There were no aircraft in 300 B.C., when it is judged the designs were made.
公元前300年还没有飞机,人们判断那时候飞机的设计就已经完成了。
There were no aircraft in 300 B.C., when it is judged the designs were made.
公元前300年还没有飞机,人们判断那时候飞机的设计就已经完成了。