在字典中，Sentinel這個英文字的意思為：
牛津高階英語詞典中則把它解釋為：
noun
(literary) a soldier whose job is to guard sth
Synonym: SENTRY: (figurative) a tall round tower standing sentinel over the river ◆ Large dark pines stood like sentinels guarding the wintry garden.
Sentinel是英語單詞，釋義是步哨，哨兵。
在字典中，Sentinel這個英文字的意思為：
牛津高階英語詞典中則把它解釋為：
noun
(literary) a soldier whose job is to guard sth
Synonym: SENTRY: (figurative) a tall round tower standing sentinel over the river ◆ Large dark pines stood like sentinels guarding the wintry garden.