All clocks must have a regular, constant or repetitive process or action to mark off equal increments of time.
所有时钟都必须有一个均匀、恒定或重复的划分时间等量增加的过程或动作。
2
Your body has a constant demand for energy and USES the calories from food to keep functioning. Energy from calories fuels your every action, from fidgeting to marathon running.