If you choose to create a Web site index on your own, some training in indexing is recommended.
如果你想自己创建一个网站索引，需要进行一些标引方面的培训。
2
Even more important than off-site courses is on-the-job training.
比脱产培训更为重要的是在职培训。
3
The design and the implementation of virtual simulation training system overcomes the deficiency of traditional on-sitetraining system, at the same time, improves the vivid of training system.