A fixed place where a detachment of guards or sentries perform their duties. The frontier post explained in detail where the sentry was stationed. Hui Yuan's poem "Ambush": "Leave matches at the post, leave flashlights at the post, bid farewell to lights and candles, bid farewell to bonfires, and we will live an ambush."
Word decomposition
Explanation of whistle patrol, guard and security post: sentry. Checkpoint (? )。 Post it. The sentry stood guard. In ancient times, the standards for building the army were different. Small flute: whistle. A high-pitched sound blown from the mouth: a whistle. Birds are singing. Radical: mouth; Explanation of location, location: residence. Post it. Location. Location. Name of institution or place of work: research institute. Police station. Quantifiers refer to houses: quadrangles. Used before a verb, it means something that accepts an action: the Ministry (the army led by it). say