如果他现在还活着,他可能三年前就完成了他的桥梁建筑科研工作了。  If he were alive now, he might have finished

游客2023-08-08  17

问题   如果他现在还活着,他可能三年前就完成了他的桥梁建筑科研工作了。

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答案   If he were alive now, he might have finished his scientific research on the bridge building three years ago.

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