例句
The two patterns alternate over periods of two to seven years in the tropical Pacific.
在热带的太平洋地区，这两种现象的交替周期超过了两到七年。
To make the tiger blink, you alternate the transparency between the two areas by locating both the areas and paths in the corresponding XML.
要让老虎眨眼，可以通过在相应的 XML 中定位这两个区域及其路径来在两个区域间交替透明性。
In most jurisdictions, twelve jurors and two alternates are chosen.
在大多数审判中，12名陪审员和2名替补人员会被选出。