到了16世纪,人们发明了摆钟,但钟摆摆动的幅度很大,因此效率不高。
By the 16th century, a pendulum clock had been devised, but the pendulum swung in a large arc and thus was not very efficient.
He was motionless, all but for one finger that moved up and down in front of his face as if he were marking time with it.
他一动也不动,除了一根手指在他的面前上下摆动,好像在用它标记时间。
It has units of time, it represents the price of time, and it is something that fluctuates through time in interesting patterns.
这是一种时间的单位,代表着时间价值,利率以它特殊的模式,随着时间上下摆动
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