To map out.

作图；用图表示。

A map of any part of a sea, river, etc. for the use of mariners.

(航行用之)海图；河图。

The map of a ship's course.

航线图。

A sheet giving information in tabular form.

图表。

A map is a representation of all or part of the earth's surface; it may show physical features, political divisions, distribution of population, etc.

Map 为表示地球表面全部或部份之图，显示地理形态，政治区域之划分或人口之分布等。

A chart is a particular map designed for the use of navigators, showing the position of channels, shallows, rocks, lighthouses, etc.

Chart 则是为航海所特别设计的地图，图上标明海峡，浅滩，暗礁，或灯塔等之所在地点。