每一个星期，你的跑步增加1/4英里，这是大都数室外跑道的一圈。
Each week, you'll increase your runs by a quarter mile, which is a lap on most outdoor tracks.
复合句：系统应能在车沿跑道绕行一圈后5秒之内显示这一圈花费的时间。
Complex sentence: the system shall be able to display the elapsed time for the car to make one circuit around the track within 5 seconds of the lap completion.
简单句：系统应能显示车沿跑道绕行一圈花费的时间。
Simple sentence: The system shall be able to display the elapsed time for the car to make one circuit around the track.
系统应能显示车沿跑道绕行一圈花费的时间。
The system shall be able to display the elapsed time for the car to make one circuit around the track.
并列句：系统应能显示车沿跑道绕行一圈花费的时间，且时间的格式应是hh：mm：ss。
Compound sentence: the system shall be able to display the elapsed time for the car to make one circuit around the track, and the time format shall be hh: mm: ss.
内侧跑道一圈的长度是400米，而第八跑道的长度超过420米。
The inside lane has a circumference of 400 meters for one lap, whereas the 18th lane is over 420 meters long.
内侧跑道一圈的长度是400米，而第八跑道的长度超过420米。
The inside lane has a circumference of 400 meters for one lap, whereas the 18th lane is over 420 meters long.
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