Because the parameter groups is an array, it is possible to specify multiple groups, separating their names with commas.
因为参数groups是一个数组，所以可以指定多个组，组名之间用逗号分隔。
Because the parameter groups is an array, it is possible to specify multiple groups, separating their names with commas.
因为参数groups是一个数组，所以可以指定多个组，组名之间用逗号分隔。
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