在广告期间，屏幕底部会出现一条信息，提示观众按下按钮以请求获得免费样品或订购优惠券或目录。
During commercials, an overlay will appear at the bottom of the screen, prompting viewers to press a button to request a free sample or order a coupon or a catalogue.
在更复杂的场景中，您可能希望协调更可用的信息来解释一个按钮按下的预期操作行为。
In more complicated scenarios, you might want to interpret the expected operational behavior of a button press based on coordinating more available information.
填入节点名、口令以及联系信息；然后按Finish按钮。
Fill in the node name, password, and contact information; then press the Finish button.
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