【答案解析】
Time is abstract to us because we cannot see it, hold it, and even touch it. While we can feel it, when it comes to feel the time, we must put our own emotion into it, that"s why Henry Van Dyke said that time is too slow for those who wait, too swift for those who fear, too long for those who grieve, too short for those who rejoice, but for those who love, time is eternity. When we wait for someone we often feel time goes too slow, maybe only 5 minutes to the appointed time, we feel like that we have been here waiting for one decade. And when we get together with our friends especially with whom we haven"t seen for many years, several hours may pass like one minute has passed. This is because we are so happy that we don"t pay our attention to calculating the time. All our attention has been put in the happiness we make. To the people who are falling in love, time is eternity because they love each other, and all they focus on is each other. They have no time or energy to care anything, so the time is eternity.
While in my way of thinking, time is limited, and we should not waste our time in calculating every seconds or minutes, we should spend our time in doing the right things.