“关入栏中”可以翻译为“be confined/locked in a pen” 。其中,“confine”有“限制;禁闭”之意 ,“lock”强调“上锁;关住” ;“pen”在这里指“畜栏;围栏” 。
例如:The sheep were confined in a pen.(羊被关入了栏中 。)