So now figuring out if your API does proper round-tripping requires that you know the basics of XML, and ensure that those rules are being followed by your API.
This is the first step in testing out JAXB's round-tripping capabilities.
这是测试jaxb往返能力的第一步。
3
Waste baskets or any other items that set on the floor should be kept under a table or desk, in a corner or other out-of-the-way places to minimize tripping hazards.