SAT TOEFL

sentinel

Definition

A soldier or guard stationed to keep watch or to protect a place or person.

中文 被安排站岗或保护某地或某人的士兵或卫兵。

Example

"A lone sentinel stood at the entrance of the fortress."
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Study tips featuring "sentinel"

TOEFL Academic Vocabulary: Study by Topic How Context Clues Save You on the SAT

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