设置或获取当前事件是否要在事件句柄中向上冒泡。

Sets or retrieves whether the current event should bubble up the hierarchy of event handlers.

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向下行进到目标称为捕捉（capture）阶段，而再次向上行进称为冒泡（bubbling）阶段（并不是所有的事件都会冒泡）。

The trip down to the target is known as the capture phase, while the trip back up again is known as the bubbling phase. (Not all events can bubble.)

youdao

先把锅里的水烧开，然后把汤圆扔进水里，煮到汤圆向上漂，水“咕嘟咕嘟”冒泡时，就是已经煮熟了。

Put a pot of water to boil and then throw the dumplings into the water, cook until the rice dumpling upward drift, water bubble, "begin" is already cooked.

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事件在显示列表中只向上级的父级链冒泡。

An event only bubbles up the parent's chain of ancestors in the display list.

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事件在显示列表中只向上级的父级链冒泡。

An event only bubbles up the parent's chain of ancestors in the display list.

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