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来源:雅诚德英语网
Twice in the twentieth century, large meteorite objects are known to have collided with Earth.
"在二十世纪,已知有两次大型陨石与地球相撞的案例。
Twice in the twentieth century, large meteorite objects are known to have collided with Earth.
"在二十世纪,已知有两次大型陨石与地球相撞的案例。