监控显示他多次在超市顺手牵羊。

The security footage showed he had shoplifted several times from the supermarket.

shoplifted 是动词 shoplift 的过去分词形式。shoplift 由 shop（商店）和 lift（举起、偷窃）组成，字面意思是"在商店里偷窃"，特指在商店里顺手牵羊的偷窃行为。shoplifted 表示"实施了商店偷窃行为"。