a soldier whose job is to guard sth 哨兵 SYN sentry
(figurative)
a tall round tower standing sentinel over the river
镇守在河边的一座高高的圆
a soldier whose job is to guard sth 哨兵 SYN sentry
(figurative)
a tall round tower standing sentinel over the river
镇守在河边的一座高高的圆