while doing 的用法疑问 - 柯帕斯英语网

5 while doing 的用法疑问

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请问老师while在这里是什么用法？

Its Intelligent Transport System tells drivers when roads are crowded, while changing traffic lights and planning alternative routes that drivers can follow.

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陈才 - 英语教师 2024-05-13 12:06

擅长：中考英语,词法问题

Its Intelligent Transport System tells drivers when roads are crowded, while(it is省略) changing traffic lights and planning alternative routes that drivers can follow.

参考译文:它的智能交通系统在道路拥挤时告诉司机，同时改变交通灯并规划司机可以遵循的替代路线。

5 while doing 的用法疑问

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