Definition: to keep someone in a place so that they cannot leave Level: B2
恐怖分子将他扣为人质长达18个月。
The terrorists ___held him hostage for 18 months.
我被关在一个小小的阁楼房间里。
I was ___held prisoner in a tiny attic room.
世界各地动物在动物园里被当作囚犯关押。
All around the world animals are ___held as prisoners in zoos.
