A complete and ideal teaching situation is a four-fold structure which consists of Needs - Motivation Circle, Tasks - Case Circle, Conditions - Information Loop and Cognitive - Practice Space.

实践圈有机结合而成的四重结构，包含背景、案例、任务、工具、需要、目标、条件等要素。

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The best way is to space your practice out, rather than cram it all together.

最好的方法是把练习时间隔开，而不是将练习都塞在一起。

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Best practice: To save space in the analysis database, you should delete the output tables from older runs when they are no longer needed.

最佳实践：为节省分析数据库的空间，应当从旧有运行中删除不需要的输出表。

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Next year, the Chinese plan to launch a small space laboratory to practice docking of spacecraft in orbit.

VOA: special.2010.04.28

And next year, the country is launching a small space lab to practice docking in orbit - an essential part of manned missions to the Moon and Mars.

VOA: standard.2010.04.21

During the dive, which takes up to four hours due to the high density of the water (it is filled with certain chemicals plus air pressure to simulate the circumstances found in space), the cosmonauts in training practice space walking -- and may lose a few kilos off their waist line in the strenuous process.

BBC: The dated future of Russia��s Star City

Leeders Farm, owned by Dan Hawkins - the former member of Lowestoft band The Darkness and current guitarist with Stone Gods - is helping Norfolk musicians thrive by giving them a professional space to practice and record.

BBC: Leeders Farm provides new studio for Norfolk bands

Once an action becomes automatic, you now have the mental space to observe yourself as you practice.

FORBES: Why Apprenticeships Are the Fastest Way to Acquire Skills