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。
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。
This best practice originates from the OOAD space.
这种最佳实践来源于OOAD空间。
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
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