pentagon
🇺🇸
/ˈpentəɡɑːn/
🇬🇧
/ˈpentəɡən/
a flat shape with five straight lines and five corners
He drew a pentagon on the paper.
他在紙上畫了一個五邊形。
a large building in the United States where the military leaders work
News from the pentagon was broadcasted last night.
昨晚播報了五角大樓的新聞。