They can provide a useful overview—an aerial map, as it were, to familiarize you with the main landscape features to be encountered during a course.

它们可以提供一个有用的概览——一个航拍图，可以让你熟悉课程中遇到的主要景观特征。

youdao

NHK television transmitted aerial images of flood waters engulfing the airport, where survivors clustered on the roof of the main building.

NHK电视台传送的空中图片，洪水淹没机场，幸存者都聚集在主建筑的房顶。

youdao

The main data - the 2008 aerial image - was retrieved from USGS Seamless Server.

主要数据—2008年航空图像—来自于usgs Seamless Server。

youdao

Before this vibrant encounter at the Mbombela Stadium, Italy coach Marcello Lippi had identified New Zealand's aerial threat as the main danger to his team - and that warning proved prophetic within just seven minutes.

BBC: Italy 1-1 New Zealand

Until now, the main French effort against the rebels has been aerial bombardment of their positions using jet fighter planes and helicopters.

BBC: Mali: French troops head north into unknown

Agents, determining that Kuwaiti was living there, used aerial surveillance to keep watch on the compound, which consisted of a three-story main house, a guesthouse, and a few outbuildings.

NEWYORKER: Getting Bin Laden