他不时地抬起头看看时钟，然后又接着看报纸。
Sometimes he looked up at the clock, and then he went back to reading his paper.
莎拉面向时钟，看看时间是什么时候。
如果你想要晋级下一阶段，看看如何建立一个数码时钟和单片机，看看微控制器的工作。
If you would like to advance to the next level and see how to build a digital clock with a microcontroller, see how Microcontrollers Work.
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