There was even a long story featuring my own great-great-grandmother, a storm, a mule, a broken-down cart , and the heroic ghost dog.
甚至还有一个很长的故事,讲的是我的高曾祖母,一场风暴,一头骡子,一架抛锚的大车和这只英勇的狗精灵。
The iron-wheeled cart clattered down the street.
铁轮大车咯噔咯噔地穿过大街。
He looked down, to relieve his neck, and stared at the rusty chain at his feet, coiled around the metal rod that connected the cycle to the cart.
他低下了头,来缓解脖子的疼痛,眼睛停留在脚下生锈的铁链上,那铁链绕在连接自行车和拖车的金属杆周围。
if you've got a hill or valley and there's a cart on wheels it's going to go down to the bottom.
如果我们有一座山或者山谷,并且,有一个有轮子的车,这辆车会自动滑到底部。
In the case here, tha t I just illustrated with the little cart going down the valley, would be exactly the same with regular energy, the equilibrium state is one of lowest energy, right.
在现在所考虑的情况下,我刚才所描述的小车沿着山谷下行,结论会像能量判据一样,平衡态是能量最低的态。
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