1·Humans hardly ever break up the food chains.
人类几乎从不破坏食物链。
2·It's dangerous for humans to break up the food chains.
破坏食物链对人类来说是很危险的。
3·It could disrupt the food chains there.
它可能会破坏那里的食物链。
4·All fast food chains should reduce unnecessary packaging, he added.
他补充说，所有快餐连锁店都应该减少不必要的包装。
5·As a result, fast-food chains have weathered the recession better than their more expensive competitors.
结果，快餐连锁店比其他价格更高的竞争对手们更好地度过了这一经济衰退时期。
6·In 2009 sales at full-service restaurants in America fell by more than 6%, but total sales remained about the same at fast-food chains.
2009年，美国提供全方位服务的餐馆的销售额下降了6%以上，但快餐连锁店的总销售额却保持不变。
7·Big fast-food chains in New York City have started to obey a first of its kind rule, requiring them to post calorie counts right on the menu.
纽约市的大型快餐连锁店已经开始遵守史无前例的规定，也就是在菜单上标明卡路里计数。
8·Big fast-food chains in New York City have started to obey a first-of-its-kind rule, requiring them to post calorie counts right on the menu.
纽约市的大型快餐连锁店迎来了一项史无前例的新规定，这一规定要求他们在菜单上附上卡路里含量表。
9·Fast-food chains should also stop offering "inducements" such as toys, cute animals, and mobile phone credit to lure young customers, Stephenson said.
斯蒂芬森说，快餐连锁店也应该停止提供诸如玩具、可爱的动物和手机积分等“诱惑”来吸引年轻顾客。
10·Who ate whom in the food chains of the past is rarely clear.
过去的食物链中谁吃谁的问题很少能明确下来。