circumscribeKK [ˏsɝkəmˋskraɪb] /ˌsɝkəmˈskɹaɪb/發音circum 圓、環繞+scribe 寫→在周圍畫線展開收合circum字根圓、環繞scribe字根寫字面：在周圍畫線在四周畫出界線，即圈起來、加以限制。動詞1限制、約束、設限正式The new law circumscribes the powers of local officials.這項新法限制了地方官員的權力。2畫線圈出、圈起He circumscribed the flooded area on the map in red.他在地圖上用紅筆把淹水區域圈了起來。3外接數學Circumscribe a circle around the triangle you just drew.在你剛畫的三角形外面作一個外接圓。