Because no single plant food is as nutritious as meat.
因为没有一种单一的植物食品和肉类食品一样有营养。
For miles around us there was nothing but a desert, without a single plant or tree out of sight.
离我们几里远的地方除了沙漠什么也没有，看不到一棵植物或一棵树。
A single rye plant can spread up to 400 miles of roots underground.
单单一颗黑麦植物的根可以蔓延至地下400英里。
A single experience with this kind of plant will teach an animal to stay away from it in the future.
只要有一次接触这种植物的经历，任何一种动物就会在以后的日子再也不敢对于仙人类植物问津了。
Plant can be divided into two types: single and multi-layer .
厂房可分为两种类型单层的和多层的。
Method: Using plant single cell plate culture technique.
方法：利用植物细胞平板技术培养。
Method: Using plant single cell plate culture technique.
方法：利用植物细胞平板技术培养。
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