英语语法分析

I think, though, that even in the USA, ethanol is still only used as an additive to gasoline, or petrol.

不过我认为，即使在美国，乙醇仍然只用作汽油的添加剂。

Milk is sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening.

牛奶不含糖和添加剂，因此营养学家推荐脱脂牛奶作为睡前的最佳选择，因为它最不容易让人发胖。

Milk is also sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening.

牛奶也不含糖，也不含添加剂，营养学家建议睡前最好选择脱脂牛奶，因为它最不容易发胖。