Widgets — This includes HTML and Cascading style Sheet (CSS) template capabilities with loose coupling to the widget implementation, providing distinct separation of style, content, and logic.
If you are working on paper, you can photocopy your loose sketch, and just trace over it with a new sheet.
如果你是纸面工作的话，你可以在上面叠一张纸然后描线。
3
In loess hilly gully region covered by sheet sand, soil water erosion process is different from typical loess hilly gully region because of worse natural environment and loose land surface material.