We hurriedly ended the meeting, leaving many problems to be settled.
我们匆忙结束了会议，留下很多问题要解决。
We hurriedly ended our meeting, leaving many problems to be settled.
我们匆匆忙忙地结束了会议，留下了很多问题等待解决。
One of the key problems to be settled for the electric vehicle is the motor and its control technology.
电动汽车需要解决的关键问题之一是电机及其控制技术。
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