A timeron does not directly equate to any actual elapsed time, but gives a rough relative estimate of the resources (cost) required by the database manager.
timeron不直接等于真正的消耗时间，但是对数据库管理器所需的资源(成本)给出了一个相对粗略的估算。
She was, by one rough estimate, your 10,000th-great-grandmother.
粗略的估计一下，她会是您的第一万代曾祖母。
Countermeasures: to do a rough time estimate the daily homework assigned by the teacher, children will need to complete the task (including parents set tasks) for a time expected.
对策：把每天老师布置的作业做一个大概的时候估计，将孩子需要完成的任务(包括家长布置的任务)进行一个时间预计。
Countermeasures: to do a rough time estimate the daily homework assigned by the teacher, children will need to complete the task (including parents set tasks) for a time expected.
对策：把每天老师布置的作业做一个大概的时候估计，将孩子需要完成的任务(包括家长布置的任务)进行一个时间预计。
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