The measurement of time in seconds is based on the scientific definition of the second, which is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom. The definition of the second was established by the International System of Units (SI), which is a standardized system of measurement used in many countries around the world.
Here are some example sentences in English using the phrase "9.69 seconds," along with their translations in Chinese:
"I ran the 100 meter dash in 9.69 seconds and broke the school record." (我在百米跑中跑了九点六十九秒，打破了校记录。)
"The world record for the 100 meter dash is 9.58 seconds, which was set by Usain Bolt in 2009." (百米跑的世界纪录是九点五十八秒，是2009年尤塞恩·博尔特创造的。)
"The time it takes for light to travel from the sun to Earth is about 8.3 minutes, or 499.0 seconds." (从太阳到地球的光线所花费的时间大约是8.3分钟，或499.0秒。)
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最佳回答 2023-04-11