“在阳光下”作状语,要删掉;
“大片”作状语,要删掉;
“青松”作定语,要删掉;
“边沿”作主语,保留;
“闪动着”作谓语,要保留;
“白烨”作定语,要删掉;
“银群”作宾语,要保留;
“就像海边的浪花”作补语,要删掉.
最后缩成:边沿闪动着银群.