Your various turrets and their upgrades researched throughout the campaign are very helpful for defending your base, expansions, and key chokepoints.

你的各种炮塔和战役中的升级研究对保护你的基地，扩张分矿，面对关键点的时候非常有帮助。

youdao

On the base of defending their benefits, they have been enlarging and deepening exchange and cooperation.

在维护各自利益的基础上，双方的交流合作不断扩大和深化。

youdao

Fight the opposing forces through various dynamic missions defending your base aircraft carrier and conquering Islands.

对抗敌对势力通过各种动态任务，保卫你的基地的航空母舰和征服群岛。

youdao

Jackson was the supply base for the Confederate army defending Vicksburg.

VOA: special.2009.11.19

While Apple has developed new growth markets, Microsoft has invested in defending its historical revenue base.

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"I spend a lot of time defending publishing, now there will be a shareholder base that believes in publishing, " Mr. Carey told the group.

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White House officials say Mr. Obama will pick other battles with Republicans, such as defending his health-care program or education spending, that will please his liberal base.

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