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来源:雅诚德英语网
An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.
飞机得在达到一定的速度以后,才能有足够的提升力从地面起飞。
An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.
飞机得在达到一定的速度以后,才能有足够的提升力从地面起飞。