delineate
verb (formal)- delineate something
to describe, draw or explain something in detail （详细地）描述，描画，解释 Our objectives need to be precisely delineated. 我们的目标需详细解释清楚。 The ship's route is clearly delineated on the map. 这条船的航线清楚地标在地图上。
Word Originmid 16th cent. (in the sense ‘trace the outline of something’): from Latin delineat- ‘outlined’, from the verb delineare, from de- ‘out, completely’ + lineare (from linea ‘line’).