我把车开出去在公路上试了一下。
我把车开出来,驱车到格雷格那儿去。
刚才正当我把车开出车库前往办公室时,一堂精彩绝伦的课展现在我面前。
A marvelous lesson appeared for me just now as I was exiting thru the garage, to come to this little playplace they call an office.
How much energy are you going to get out, and how far are you going to be able to drive a car with this expansion, let's say, so that's the problem.
你能获得多少能量,利用这次膨胀,你可以把你的车开出多远,比如说这就是问题所在。
Car is traveling with some initial speed v0 in the horizontal direction.
车以 v0 的初速度沿水平方向开出
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