Think of it as a railroad car hurtling down the line at the same time that attendants scramble to hitch on the wheels and lay the track.
而这就像当一辆有轨电车沿着路线疾驰的同时，乘务员在极力减缓车速以便铺设新的轨道。
Line on the other side, parents are scared jump in a hurry to lay down their homework and came school.
线的另一边，父母吓得一跳，急忙地放下手中的活儿，赶来学校。
Line on the other side, parents are scared jump in a hurry to lay down their homework and came school.
线的另一边，父母吓得一跳，急忙地放下手中的活儿，赶来学校。
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