Last night the room was broken into and documents were selectively rifled by trained hands.昨夜，有人闯进房间并用熟练的手法有选择地翻查了文件。Critics argue that the drug laws have been selectively enforced.评论家称药品法是有选择地实施的。The dog is selectively bred for its calm temperament.这种狗因为生性温顺被挑选来喂养。