VOA慢速英语:研究人员对玉米进行基因改造以增加营养

n. 氨基酸;
[例句]Arginine accumulates extensively in some plants as a soluble amino acid.
在某些植物中，精氨酸以可溶性氨基酸大量积累。

2.commodity

n. 商品; 日用品; 有价值的物品; 有利，有益;
[例句]The government increased prices on several basic commodities like bread and meat.
政府提高了面包、肉类等几种基本商品的价格。

3.genome

genome 英[ˈdʒi:nəʊm]
美[ˈdʒi:noʊm]
n. 基因组，染色体组;
[例句]They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle

of the human genome
他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。

4.kernel

n. 核; 核心; 要点; 谷粒;
v. 把…包在核内;
[例句]The kernel of that message was that peace must not be a source of advantage or disadvantage for anyone.
那一信息的核心是和平绝不应该成为对任何人有利或不利的根源。

5.nutrition

n. 营养学; 营养品; 营养，滋养; 食物;
[例句]There are alternative sources of nutrition to animal meat
存在替代肉类的其他营养来源。

6.methionine

n. 蛋氨酸，甲硫氨酸;
[例句]The article discussed the effects of zinc methionine on poultry immune system.
综述了锌蛋氨酸对家禽免疫系统的作用，并讨论了锌的细胞免疫功能。

7.staple

n. 主食; 主要产品; 钉书钉，U 形钉; 主题，主要部份;
vt. 用钉书钉钉住;
adj. 最基本的，最重要的;
[例句]Rice is the staple food of more than half the world's population
稻米是全世界一半以上人口的主食。

8.synthetic

adj. 合成的; 人造的; 摹拟的，虚构的; [语] 综合的;
n. 合成物; 合成纤维; 合成剂;
[例句]Boots made from synthetic materials can usually be washed in a machine.
合成材料制成的靴子通常可以机洗。