After noticing many yawns coming from the audience, the professor ended his extremely long lecture by saying, "Sorry, I completely lost track of the time. I didn't bring my watch with me." One of the students replied, "Yes, but there's a calendar next to you." That bored student might mention the calendar in a cynical tone, but we can't deny that modern people could never live without it. Almost a
{{#tags}}- {{label}}
{{/tags}}