Last August the XT chain of gasoline stations had a temporary sales promotion in effect.

去年8月，XT 连锁加油站进行了一次临时促销活动。

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The effect was to disrupt the food chain, starving many animals and those that preyed on them.

后果是打断食物链，使许多动物和捕食它们的动物饿死。

《柯林斯英汉双解大词典》

Other elements include the "box-office chain effect", the tourism boost from the star's films and the "general promotional effect" for Britain.

其他因素还包括“票房链效应”，明星电影对旅游业的刺激效果及对英国的“总促进效应”。

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Mr Smith said the oil could "potentially affect the food chain and therefore have a knock-on effect on other wildlife".

BBC: Chesil Cove seabird rescuer talks of 'distress'

In terms of the effect, I believe that the effect of the -- on the supplies chain that was caused by -- the global supply chain, especially in automobile manufacturing, that was caused by the earthquake and tsunami, that that has certainly diminished.

WHITEHOUSE: Press Briefing

After much foot-dragging by the restaurant industry, a new rule requiring chain restaurants display calorie counts on their menus is taking effect in the latter half of this year.

FORBES: Calories on Restaurant Menus Won't Make Us Eat Less -- But Here's One Thing That Might