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来源:雅诚德英语网
The seed has an outer coating that surrounds the genetic material of the new plant, and inside this covering is a concentrated supply of nutrients.
种子有一层外壳,包裹着新植物的遗传物质,外壳内部是集中的营养供应。
The seed has an outer coating that surrounds the genetic material of the new plant, and inside this covering is a concentrated supply of nutrients.
种子有一层外壳,包裹着新植物的遗传物质,外壳内部是集中的营养供应。