Trains and cars initially allowed people to live at greater distances without taking longer to reach their destination.
火车和汽车最初使人们可以住在相隔较远的地方,而不需要花费更长的时间来到达目的地。
The neck of four footed animals is usually long, to have them reach their food without difficulty, but the elephant has a short neck, to make him more easily support the weight of his huge head and heavy teeth.
四足动物的脖子通常很长,这样它们就可以毫不费力地够到食物,但是大象的脖子很短,这样它就可以更容易地支撑它巨大的头和沉重的牙齿的重量。
However, without the necessary learning resources, these efforts cannot reach their full potential.
然而,如果没有必需的学习资源,这些努力就不能充分发挥其潜力。
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