Steel gratings and blinds, CCTV cameras, security guards at the entry and hidden inside only add to the atmosphere of a battlefield and on-going hostilities.

铁格栅板、百叶窗、摄像头，保安只不过增加了战场和敌意的气氛；

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As you can see, ladies and gentlemen, the guests were seated very informally around this oval table, which would add to the relaxed atmosphere.

女士们，先生们，正如你们所看到的，客人们非常随意地坐在这个椭圆桌子周围，可以增加轻松的气氛。

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The trouble comes when humans add too much gases to the atmosphere.

当人类向大气层排放了过多的温室气体时，麻烦就来了。

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Greenhouse gases are not the only climatically active ingredients that industry, farming and land clearance add to the atmosphere.

ECONOMIST: The science of climate change

Far from being a spark plug for crowd trouble, I believe anthems, whether booed or sung with lung-busting gusto, add to the atmosphere of the game and put fire in players' bellies.

BBC: SPORT | Football | African | To sing or not to sing

Solskjaer latched on to a Rooney header and tucked the ball across goal and into the bottom corner to further add to the party atmosphere.

BBC: SPORT | Football | Premiership | Man Utd 3-1 Wigan