In modern society many people suffer a lot from the polluted air. We should fight a battle against pollution to protect our environment.

在现代社会许多人饱受空气污染之苦。我们应该与污染作斗争，以保护我们的环境。

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They are ready to fight a decisive battle.

他们做好会战的准备。

《新英汉大辞典》

It is easier to fight a downhill battle than attempting to influence change from the bottom up.

打一个下坡仗要比试图自底向上影响变更要更容易。

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It expresses the movie's difficult love story between a young woman and a vampire and the battle they must prepare to fight.

VOA: special.2010.06.25

Giannini rushed to Washington and had to fight a harrowing battle to stop this demolition coup.

FORBES: Why Rupert Murdoch Will Survive And Thrive Again

Hand it to Shell for continuing to fight the good fight in a battle that has already been lost.

FORBES: Shell To Feds: We're Already Safe, Let Us Drill

"We continue to fight a losing battle against weather and congestion in that part of the country, " says Comair spokeswoman Kate Marx.

FORBES: Magazine Article