The size and heft of current fuel cells has been a major obstacle to making them practical for use in automobiles. 目前的燃料电池的体积和重量是将它们实际运用于汽车的主要障碍。
But the popularity of Atkins' eating advice, now appealing to another generation, is fraying the nerves of some food companies who rely on the consumer appetite for carbohydrate-laden foods such as pastas and pizzas, cakes, cookies and cereals, to add heft to their own bottom lines. 然而，这普遍流行且正感染着下一代人的阿特金斯饮食理念让另外一些食品公司大伤脑筋。这些食品公司以销售富含碳水化合物的食物为主，如意大利面、比萨饼、饼干和谷类食品等，顾客对这些食品的喜好将决定他们能否营利。
现代英汉综合大辞典
[美、英方]重量, 体重
柯林斯
百科