They must finish the job by the time when the plane arrives.
飞机到达前他们必须完成该工作。
We often have to finish the work of transformation between Rectangular Plane Coordinate Systems.
在测量工作中，常需要进行平面坐标系之间的转换计算工作。
Talk about your plane to your family or friends and finish the survey.
把你的计划告诉家人或朋友并完成调查。
Talk about your plane to your family or friends and finish the survey.
把你的计划告诉家人或朋友并完成调查。
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