The system includes five built-in focus traversal policies, the latter three of which are specific to swing.

该系统包括5种内建的焦点遍历策略，其中后3种策略是特定于Swing的。

youdao

Because Swing is built on top of the Abstract Window Toolkit (AWT), the management of component focus relies on the underlying focus management in the AWT.

由于Swing建立在抽象窗口工具包(awt)之上，对组件焦点的管理便依赖于awt中的底层焦点管理。

youdao

Not to her, when Twentieth-Century Fox (whose rickety fortunes she reversed) built her her own little bungalow on the lot, with a rabbit pen and a swing in a tree.

她可不这么想，当时二十世纪福克斯公司（她挽救了这家公司坎坷的命运）为她在院子里建造了小屋，笼里养着兔子，树上安放秋千。

youdao

The HMX-U20's and HMX-U15's built-in, swing-out style USB connection gives users the ability to forego having to always carry a separate USB cable to connect and upload footage to a computer.

ENGADGET: Samsung's PMA gifts: HD pocket camcorders, point-and-shoots with AMOLED screens