海关官员仔细检查了乘客的行李。

The customs officer scrutinized the passenger's luggage carefully.

scrutinized 是动词 scrutinize 的过去式，由词根 scrutin（源自拉丁语 scrutari，意为"仔细检查"）加上动词后缀 -ize 构成，表示"仔细检查、详细审查"的动作。