But even more important is the ground war-the hard slog of knocking on doors, Posting fliers, making phone calls and trying to get voters to the polls.

不过更为重要的还是“地面战”，这需要长途跋涉的苦干，挨家挨户地敲门、张贴传单、打电话，以及努力争取选民参加投票。

youdao

The cemetery started as a burial ground for American Civil War dead.

VOA: standard.2010.05.26

But Clinton is hanging back, and Pentagon officers, who oppose any ground war, will keep advising him against one.

CNN: IT'S FLIGHT OR FIGHT

Bold as Smith may be with the ground war, he cannot ignore the recession that started in the third quarter.

FORBES: Start the Ground War

Like Clinton, powerful members of Congress believe Americans are not willing to make the sacrifices required by a Balkan ground war.

CNN: IT'S FLIGHT OR FIGHT