Throughout your day record the time whenever you start or stop any activity. Consider using a stopwatch to just record time intervals for each activity.
一整天当你开始或完成某个活动时都把时间纪录下来,可考虑使用秒表来记录每个活动的时间间隔。
Rather, when data changes, the database should just add another record and note duly the previous value for that record.
当数据发生变化,数据库应该只添加另一条记录,并标记删除该记录的前一个值。
Let me just state for the record; training for this triathlon has humbled and educated me.
让我先申明一下作为记录,这次训练给我上了生动的一课并让我时刻保持谦逊。
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