Usually, this is a sub task that is part of a bigger goal.

通常这是一个大目标下的小任务。

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Plan each part of the task so that you are focusing on completing the sub task rather than the overall task.

对每一部分的任务作出计划，这样你能够将注意集中到完成子任务上而不是整个任务。

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The JobTracker, as the single control point for launching the MapReduce applications, decides how many TaskTracker and subordinate tasks to be created and then assigns each sub-task to TaskTracker.

JobTracker作为启动MapReduce应用程序的单一控制点，它决定应该创建多少个TaskTracker和子任务，然后把每个子任务分配给TaskTracker。

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Workforce analytics provides accurate, real-time labor data down to the task and sub-task level and allows organizations to reconcile that time to payroll data for 100 percent job costing.

FORBES: Work Smarter: How Big Data Can Boost Labor Performance

The role of the coach is to create a specific agenda, split the task into manageable sub-tasks which have clear skill components and look at the different ways a person can learn them.

FORBES: The difference between coaching and mentoring

In recent months, US forces in Afghanistan have pledged to increase their oversight of security contractors and set up task forces to track the money spent among sub-contractors.

BBC: Afghan security contractors 'fund Taliban'