Would you rather see 30 cars drive back and forth to a supermarket, or just one van delivering to 30 households?
你是想看到30辆小汽车来回去超市，还是一辆货车给30个家庭送货？
And toward this end he began to take notes: he jotted down all sorts of data, time of day, type of gas used, time to drive back and forth, etc.
接近结束他开始整理笔记，他草草记写的：各种日期，每天的时间，用过的各种汽油，来去的时间，等等。
High on the generals' wish list are supply trucks that can drive autonomously in convoy, or can memorise a given route and then automatically drive back and forth between its end points.
将军们所热衷的意愿是获得某种供给卡车，这些卡车可以结队自动行驶，或者能记住一个给定路线并在各终点之间自动往返。
Britain's newest amphibious car took a test drive on Wednesday, zooming back and forth across the waters of the Thames River in pure James Bond style.
英国最新水陆两栖跑车于周三进行了运行测试，跑车高速往返于泰晤士河面上，极具影星詹姆士·邦德之风采。
A motor is used for supplying power to automatically drive a seat plate to swing back and forth.
它用电机作动力自动驱使坐板来回摆动。
The bidirectional drive design offers the possibility of conveying the stacks forth and back.
双向驱动设计提供了前后输送栈的可能性。
The bidirectional drive design offers the possibility of conveying the stacks forth and back.
双向驱动设计提供了前后输送栈的可能性。
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