sentinel 'sentinl
GRE
释义
n. 哨兵, 标记
vt. 警戒, 守卫
[计] 标记
英文释义
n a person employed to keep watch for some anticipated event
词形变化
复数: sentinels 过去分词: sentinelled
BNC词频排名: 20,447 | 当代语料库词频排名: 19,315