Of all of them, canola is probably the least harmful because machines that use it don't produce as much carbon monoxide.
在所有这些蔬菜中,油菜籽可能是危害最小的,因为使用它的机器不会产生那么多的一氧化碳。
Spiders do not take well to farming, and as they are mostly teeny little creatures, they don't produce enough silk to be useful in large-scale production.
蜘蛛不适宜大规模养殖,而且由于蜘蛛多为微小的生物,所以它们产出的蛛丝不足以用于大规模生产。
Or in other words, vague goals don't produce real results.
或者换句话说,模糊不清的目标无法产生实质性的结果。
"There are a lot of neighborhoods that don't have access to healthy,fresh produce.
VOA: special.2010.07.06
When you don't produce enough insulin yourself, as diabetics do not, then you can use insulin as a drug.
如果你的体内不能产生足够的胰岛素,例如糖尿病人,你就可以将胰岛素作为药物使用
That is to say, they don't produce food.
换言之,城市人口可以不需要生产食物
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